HP Velotechnik Gekko fx 20, Scorpion, Scorpion fx, Scorpion fs 20, Scorpion fs 26 Operating Manual And Service Instructions

Operating manual
and service instructions
for HP Velotechnik tricycles

Sept. 2015

. . . recline in style!

2016

recumbent
technology

HP

www.hpvelotechnik.com

Velotechnik

The upper picture shows the Scorpion fs 26 S-Pedelec, the lower picture shows the Scorpion fs 26. Relevant component
are alike on all tricycles depending on the model and individual configuration.

Parts marked with "*" are options or required for S-Pedelec when using on public roads in the scope of German StVZO
(German traffic regulations)
Parts marked with " **" belong to the optional electric assist system.

Introduction

Dear customer,

thank you for buying a recumbent tricycle designed by HP V

ELOTECHNIK

and congratulations on the purchase of your new recumbent tricycle!
With this high-quality touring tricycle, you will enjoy many years of ex­hilarating riding pleasure.

Your safety and your satisfaction are our main concern. On the follow­ing pages, this manual will inform you about important safety issues as
well as maintenance and care instructions.

Even if you have many years of experience with bicycles please do take
your time to read this manual carefully before the first ride. Your re­cumbent tricycle is designed with the latest recumbent technology by
HP V

ELOTECHNIK that partly needs special treatment and care.

In this manual you will find detailed instructions on how to optimize
your tricycle to meet your demands and riding style as well as your size
and weight. In addition to this, we have put together a collection of in­formation on care and maintenance as well as special technical advice
from our engineers. Important: Please send us the attached warranty
registration form for your extended warranty (see page 88.)

This guide helps you to keep your tricycle in perfect condition so you
will always experience maximum fun, comfort and safety.

Enjoy yourselves and have a great ride!

Paul J.W. Hollants, Dipl.-Ing. Daniel Pulvermüller

and the HP V

ELOTECHNIK team

Content

Safety instructions 2

General safety instructions 2

Intended use 5
Load capacity 5
Final assembly 6
Bolts and nuts 7
Quick release levers 7
The first miles 8

Safety instructions (bicycle) 9

Legal requirements 9
No alteration of parts 9
Frame number and identification marks 9
Added parts and accessories 10
Fairings 11
Replacement of parts 11
Do not take kids with you 11
Pedelec system 11
Trailer on Scorpion fs 26 /Enduro,

Scorpion plus 20 and Scorpion plus 26 11

Trailer on Scorpion, Scorpion fx, Scorpion fs

20, Scorpion plus 20 12

Trailer on Gekko fx 20 and Gekko fx 26 12

Safety instructions (S-Pedelec) 13

Legal requirements 13
Exchanging parts 13
Identification plate 14
Added parts and accessories 14
S-Pedelec system 15
No riding without accumulator 15
No alteration of parts 15
Do not take kids with you 15
Trailers 15

Riding a recumbent tricycle 16

Learning the new riding technique 16

Handling instructions 16

How to ride correctly and safely 17
Slowly increase the strain 18

Adjusting your new tricycle 19

Adjusting the seat position 19
The BodyLink-seat for Scorpion, Scorpion fx,

Scorpion fs 20, Scorpion fs 26 /S-Pedelec
/Enduro, Scorpion plus 20 /plus 26 19

The ErgoMesh-seat for Scorpion, Scorpion fx,

Scorpion fs 20, Scorpion fs 26 /S-Pedelec
/Enduro, Scorpion plus 20 /plus 26 22

The Gekko fx 20 mesh-seat 23
The head rest 24

Adjusting to your size 25

Adjusting the front boom 25
Adjusting the length with front boom quick

adjust 28

Adjusting the handlebars 29

A good setting for the handlebars 29
Setting the width and angle on Scorpion,

Scorpion fx, Scorpion fs 20, Scorpion fs 26
/S-Pedelec /Enduro, Scorpion plus 20 /plus 26
29

Setting the angle of the handlebar on Gekko fx

20 and Gekko fx 26 30

Adjusting the cable length 31
Handlebar grips 31

Folding 32

Taking off the seat 32
Folding of Scorpion, Scorpion fx, Scorpion fs 20

32

Folding the Scorpion fs 26 /Enduro /S-Pedelec,

Scorpion plus 20 /plus 26 33

Folding the Gekko fx 20 and Gekko fx 26 36

Lighting system 41

Lighting systems for bicycles 41
Lighting system of Scorpion fs 26 S-Pedelec 43

Brakes 44

Handling of the brakes 44
Maintenance of the brakes 45
Cable operated (mechanical) brakes 46
Hydraulic brakes 46

Gear system and chain 48

Handling of the gear system 48
Adjusting the gear system 49
Chain 50
Chain tubes 51
Replacing the tubes 52
Chain roller 53

Wheels 55

Disassembling the wheels 55
Tyres 55

Content

Content

Front wheels of all Scorpion and Gekko models

56

Rear wheel of Scorpion, Scorpion fx,

Scorpion fs 20, Scorpion plus 20 and Gekko fx
20 56

Rear wheel of Scorpion fs 26, Scorpion plus 26

and Gekko fx 26 56

Wheels of Scorpion fs 26 S-Pedelec 56
Spokes 57

Headset 58

Adjusting the headset on Scorpion, Scorpion fx,

Gekko fx 20 and Gekko fx 26 58

Wheel alignment 59

Measuring toe-setting on Scorpion, Scorpion fx,

Gekko fx 20 and Gekko fx 26 59

Measuring toe setting on Scorpion fs 20,

Scorpion fs 26 /Enduro /S-Pedelec,
Scorpion plus 20 and Scorpion plus 26 59

Adjusting toe setting 59
Setting of camber angle on Scorpion fs 20,

Scorpion fs 26 /Enduro /S-Pedelec,
Scorpion plus 20 and Scorpion plus 26
(informations for bicycle mechanics) 62

Adjusting the suspension 64

Suspension and damping of Scorpion,

Scorpion fx /fs 20 /fs 26 /Enduro /S-Pedelec,
Scorpion plus 20 /plus 26 64

Rear suspension element 66

Adjusting the rear suspension element of all

Scorpion models 66

Steel spring rear shock DV-22 66
Air shock ROCKSHOX Monarch 69

Front suspension elements 72

Adjusting and maintenance on the front

suspension of Scorpion fs 20, Scorpion fs 26
/Enduro /S-Pedelec, Scorpion plus 20 and
Scorpion plus 26 72

Swing arm pivot 79

Swing arm pivot on Scorpion models 79

Mudguards 80

Front mudguards 80
Mounting of front mudguard on Scorpion fs 20,

Scorpion fs 26 /S-Peldelec, Scorpion plus 20 /
plus 26 80

Mounting of front mudguards on Scorpion,

Scorpion fx, Gekko fx 20 and Gekko fx 26 81

Water bottle cages 82

Water bottle cage 82
Water bottle cages for ErgoMesh- and Gekko-

seats 82

Water bottle cages for BodyLink-Sitz 82

Maintenance and care 83

Maintenance routine 83

Wear and tear 83
Cleaning and conservation 83
Storing the bicycle 85
Transport in the car 85

Tightening torques 86

Table of tightening torques for all Scorpion

models 86

Tightening torques for Gekko fx 20 and Gekko

fx 26 87

Warranty 88

Warranty policy 88
Warranty pass 89

Service plan 97

2

General safety instructions

The manuals of component manufacturers
such as the brake manufacturer, the gear sys­tem manufacturer, and the pedal manufac­turer also belong to this manual. They give
detailed information on operating and main­taining these specific parts. Please read the
manuals of the part manufacturers as carefully
as this manual. Please provide this manual to
any other user of your recumbent before us­ing it.

The maintenance and adjustment of this re­cumbent partly requires special tools and
skills. Do only works within your limits and,
for the purpose of your own safety, do not go
beyond.

Should you be uncertain at any point, get in
contact with your local dealer. The instruc­tions in this manual apply only to a completely
assembled HP V

ELOTECHNIK tricycle with stan-

dard parts from the series production of
HP V

ELOTECHNIK. On special demand

HP V

ELOTECHNIK delivers frame kits to put a

specialist dealer in a position to assemble a
tricycle individually. In this case the manuals
on the operation and maintenance of the
parts only represent a guideline, please read
every manual of every part manufacturer
separately.

The specialist dealer is responsible for the ex­pert assembly, please contact him for detailed
information! A tricycle that has been assem­bled from a frame kit must always be tested
and approved by a qualified bicycle mechanic
before your first ride.

The texts in the grey boxes are particularly
important for your safety. Please read
them carefully. The signs explained below
will be used in this document without bee­ing explained again!

Danger! Texts that begin with
"Danger!" mark an immediate danger for
your life and your health. Please read them
carefully.

Attention! Hints with the text
"Attention" are important for your safety1

Safety instructions

General safety instructions

3

Safety instructions

Gekko fx 20

Gekko

fx 26

Scorpion

Scorpion fx

Scorpion fs 20

General safety instructions

4

Scorpion fs 26

Scorpion fs 26 Enduro

Scorpion fs 26 S-Pedelec

Scorpion plus 20

Scorpion plus 26

General safety instructions

5

Safety instructions

Intended use

Your HP V

ELOTECHNIK tricycle is a bike for

the use on streets and paved roads.

This tricycle is not designed for the use in rac­ing and off-road riding, for jumping or acro­batics, and you must not ride across curbs,
stairs, etc.

The Scorpion fs 26 Enduro is a bicycle that
can additionally be used on unpaved roads.

The Scorpion fs 26 S-Pedelec belongs to the
EU-vehicle classification category L2e (three­wheel moped) with speeds of up to 45 km/h
(28 mph).

Using your bike on public roads is only al­lowed if it has been equipped with the acces­sories that are required by the applicable
traffic regulations of the country in which you
are using it.

Never drive without holding on! Before your
first ride, read the chapter “Riding a recum­bent tricycle” on page 17 and get carefully
used to the different vehicle performance.

Damage through inappropriate use, assembly
errors, accidents or similar activities and wilful
damage results in the loss of any warranty.

The intended use also includes the precise
observation of the prescribed usage and main­tenance regulations and instructions.

Load capacity

It is important to adjust the spring stiffness of
the suspension according to the load, see the
chapter about adjusting the suspension in this
manual, page 65.

Scorpion fx, Scorpion fs 26 /Enduro
/S-Pedelec

The maximum load (rider + luggage) is 140 kg
(308 lbs). The maximum total weight (bicycle
+ rider + luggage) is 160 kg (352 lbs). The lo­wer limit is valid. With a coupled trailer, the
maximum total weight must not exceed
160 kg (352 lbs). When riding the Scorpion fs
26 Enduro on unpaved roads the maximum
load is 110 kg (242 lbs), the maximum total
weight is 130 kg (286 lbs).

The permitted axle load is 100 kg (220 lbs) on
the front axle and 95 kg (209 lbs) on the rear
axle.

Scorpion, Scorpion plus 20 /plus 26

The maximum load (rider + luggage) is 150 kg
(330 lbs). The maximum total weight (bicycle
+ rider + luggage) is 170 kg (374 lbs). The
lower limit is valid. With a coupled trailer, the
maximum total weight must not exceed
170 kg (374 lbs).

Scorpion fs 20, Gekko fx 20 and Gekko fx 26

The maximum load (rider + luggage) is 130 kg
(286 lbs). The maximum total weight (bicycle
+ rider + luggage) is 150 kg (330 lbs). The
lower limit is valid. With a coupled trailer, the
maximum total weight must not exceed
150 kg (330 lbs).

General safety instructions

6

Danger! Additional loading can
influence the handling of your tricycle con­siderably. If you plan on riding with heavy
luggage we advise you to make a test ride
on a street with no traffic to get used to
the new situation.

The load should be placed as close to the
body of the rider as possible, since this results
in better riding performance. You can also
improve the handling of the tricycle by posi­tioning the centre of gravity of the luggage as
low as possible, so pack heavy items in the
bottom of your panniers.

Take care that your luggage is safely stored on
the racks. Bags must be tightly fastened to the
racks so they can not move. Make sure that
loose parts like straps or belts can not touch
the wheels, the derailleur, or the suspension.

The rear rack is designed for standard tricycle
panniers. On Scorpion tricycles with 26 inch
rear wheels, only side bags can be used.

Take care that your luggage does not cover
the lighting system and the reflectors of your
tricycle and that they stay fully functional.

Maximum load for carriers:

The maximum load on the rear rack is 25 kg
(55 lbs).

The maximum load on the lowrider rack for
Scorpion fx, Scorpion plus 20 and Scorpion
plus 26 is 25 kg (55 lbs).

Carrier on Scorpion fs 20

Lowrider on Scorpion fx

Final assembly

Your tricycle has been delivered to your spe­cialist dealer only partly assembled.

Your dealer has to have carefully finished the
assembly, perhaps altered the specification of
your tricycle to meet your special require­ments and performed a test ride. Please make
sure that this pre-delivery service is recorded
in the Warranty Pass at the end of this man­ual.

All screws must be checked and tightened,
especially on the handlebar, stem, knuckles,
swing arm pivot and wheels. Please follow the
tightening torque settings listed in the table on
page 88.

Derailleurs and brakes must be checked and
adjusted. Please follow the instructions in the
manuals of the parts manufacturers that come
with this manual.

General safety instructions

7

Safety instructions

Bolts and nuts

Screws gradually settle in and hence they can
come loose. Therefore check the screws
regularly if they are tightened appropriately
with a torque wrench.

In the tables on page 88 and 89 you will find
the prescribed tightening torques, they refer
to greased screws!

Attention! Screws must be
tightened with prescribed tightening
torque. In this manual tightening torques
are given in "Nm“ (Newton meter). Always
use a torque wrench wherever a torque
setting is given in this manual. Never rely
on "feeling". Screws tightened too much or
not enough can break, which can lead to
dangerous accidents. In case you don't own
a torque wrench have your bicycle me­chanic do the respective work. You will
find tables with the prescribed torque set­tings on page 88 and 89 in this manual.

The grease also prevents your screws from
seizing in their threads so that they won't un­screw anymore. In particular, screws made of
stainless steel are susceptible to this and
therefore have always to be put in with
grease.

Do use high quality acid free grease, if possible
a lubricant with added solid particles like Tef­lon or MoS2. Their ingredients still work
properly after the thinner grease has been
removed from the contact surfaces.

Alternatively you can use thread locker that
you apply to the screw before you put it into
the thread.

Always check the screws very diligently for
signs of corrosion. Rust at the screw heads
may also lead to the screw seizing in the

thread. When the metallic and shiny coating
of galvanised screws comes off and discloses
dull, gray-brown steel you have to exchange
the screw.

When you exchange screws please only use
screws of the same type. Screws come in dif­ferent strength classes. Please only use galva­nised screws of the same type and strength,
corresponding to the German strength class

8.8 or stainless steel screws grade A2-70,
when not given any other recommendation. If
you are in doubt please ask your specialist
dealer.

Quick release levers

Quick release levers hold wheels and seat in
position.

A quick release lever consists of two basic
parts: the lever on one side provides the
clamping force. With the adjusting nut on the
other side you adjust the clamping tension on
the screw thread.

Danger! An incompletely or im­properly closed quick release can result in
parts coming loose and hence in a crash,
possibly resulting in serious injury.

To open the quick release, move the lever
away from the frame. In doing so the inscrip­tion "open" should be visible on the lever.

To close the quick release, move the lever
with power in the other direction so that the
word "close" is visible on the outward side of
the lever. At the start of the lever's motion,
for, say, half of its movement, the lever should
move very easily, without any clamping action.

In the second half of the lever's movement the
force on the leer should increase considera-

General safety instructions

8

bly, corresponding in the end to 15-20 kg (46
lbs).

In its final position, the lever should come
parallel with the tricycle and should not stick
out to one side.

Check the security of the lever by attempting
to twist the lever. If the lever can be made to
pivot around in a circle the clamping is too
loose. You must re-open the quick release,
hold the lever and increase the clamping ten­sion. Do this by screwing the adjustment nut
on the other side by half a turn. Close the
lever and check the clamping anew.

Finally, check that the part being secured is
firmly fixed: Lift each wheel several inches off
the ground and give it a slap onto the tire
from above. A properly fixed wheel will re­main secure in the frame's dropouts.

Parts that are fastened with a quick release
open easily. Thus, they are more susceptible
to theft. Therefore, always secure the wheels
with a lock when you park your tricycle. It is
also possible to exchange the quick releases
with special security screws (e.g. from
P

ITLOCK) that can only be opened with a spe-

cial tool. For this please consult your local
specialist dealer.

Danger! Check the proper set­ting of quick release levers always before
riding, especially when the bicycle has been
unattended.

The first miles

The first 300 km (186 miles) are an important
for breaking in the tricycle. During the first
use of a new tricycle the screws may settle
and become loose. Cables and spokes may

stretch. Bearings may show play. Please be
very attentive during that period.

After 300 km or after two months at the lat­est you will have to take your tricycle to a bi­cycle mechanic for the first service. Please
record this first service and the works per­formed in the warranty pass on page 91. This
first service is the prerequisite for further use
of the tricycle and for your warranty claims.

9

Safety instructions

Safety instructions (bicycle)

Legal requirements

When you ride your tricycle on public roads
it must comply with national legislation and
guidelines. They will vary from country to
country.

In general, there are minimum standards for
brakes, reflectors and lighting systems, as well
as usually a general duty to ensure that your
vehicle is in roadworthy safe condition. There
will also be a duty to ride in a safe and re­sponsible manner. If you ride your
HP V

ELOTECHNIK tricycle in traffic you should

be sure to observe all the applicable laws and
regulations.

In most countries, including Germany and the
UK, two independent braking systems are re­quired. Do not ride with only one brake
working! Please contact your local dealer to
find out about your legal obligations.

In the scope of German StVZO your equip­ment has to meet the following requirements:

• two functional, independent brakes

• a dynamo or battery driven lighting system

with a white headlight aiming forward
whose beam center touches the road 10 m
ahead

• a red taillight and a red rear reflector which
may be combined

• at least one white reflector aiming forward
and a red large area reflector with “Z” label
aiming to the back

• two yellow reflectors attached to the
spokes in every wheel; may be substituted
by tires or rims with white reflective ring

• yellow pedal reflectors on both sides for
the pedals

• a bell

As an addition, we recommend to mount a
flag on a pole for better visibility in traffic. You
can find a bracket for the pole at the rear rack
or the rear light mount.

The safety equipment on your tricycle must
be checked before every ride and maintained
in proper condition.

Traffic regulations may change. Please check
currently valid regulations or ask your special­ist dealer.

No alteration of parts

Attention! You are not allowed
to perform any work on the parts of the
tricycle, especially frame, fork, handlebar
and seat, which might endanger their solid­ity.

These works include drilling holes, welding,
brazing, paint methods that add heat or any
other chemical treatment. If any of these
works is done improperly it may result in a
loss of strength by direct damage or increased
susceptibility to corrosion.

Frame number and identification marks

The frame number is placed on the postions
described below. If needed, an additional iden­tification number can be engraved at the de­scribed places on the frame.

However, we recommend to use adhesive
stickers for additional identification numbers.

Scorpion fs 26 /Enduro /S-Pedelec, Scor­pion plus 20, Scorpion plus 26

The frame number is placed on the inner side
of the gusset plate at the main frame rear end.

For additional identification numbers on Scor­pion fs 26 and Scorpion plus models, use the
area below the cable guidance on the upper
side of the seat tube (facing to the main
frame).

Safety instructions (bicycle)

10

Position for identification mark on the Scorpion fs 26
frames

Scorpion, Scorpion fs 20 and Scorpion fx

On Scorpion, Scorpion fs 20 and Scorpion fx
use the lower stay on the right side of the
gusset sheet for identification numbers, as like
the position of the frame number on the
other side.

Position of frame number on Scorpion fs 20 and Scor­pion fx

Gekko fx 20, Gekko fx 26

On Gekko fx 20 and Gekko fx 26 frames, the
identification number can be engraved besides
the frame number on the cross tubes gusset
sheet. (Some older models have the frame
number engraved on the rear end between
the chain stays facing to the tire.)

Position of frame number on Gekko models

Added parts and accessories

Attention! Mounting additional
parts or accessories is at your own risk. It
is important that you carefully read the in­stallation guide of the manufacturer. Addi­tions to the handlebar like fairings,
handlebar fittings, bottle holders, etc. may
impair your safety due to additional loading
or clips with sharp edges.

Additional accessories may impair the func­tion of your recumbent tricycle. We advise
you to generally ask your dealer before you
mount any special parts or accessories to
your tricycle.

Take care that the handlebar and the suspen­sion always stay moveable. You must not add
any parts to the handlebar or the seat that
might endanger the rider through sharp edged
or pointed shapes while steering, getting on
and off the tricycle or bumping against some­thing.

Before you purchase a bell or a lighting sys­tem make sure that these accessories con­form to your national laws and regulations.

Additional accessories may invalidate the op­erating licence or impair the function of your
S-Pedelec. This may also be valid for accesso-

Safety instructions (bicycle)

11

Safety instructions

ries and parts that are not in the category of
parts that can only be exchanged with parts
identical in construction. Before mounting
parts and accessories, it is recommended to
contact your bicycle dealer or a vehicle ex­amination organisation (like TÜV, Dekra,
GTÜ...).

Check the special safety instructions for the S­Pedelec on page 13.

Fairings

As a front fairing for recumbent tricycle, you
may use the Streamer fairing offered by HP
V

ELOTECHNIK. Please take care to assure a

good vision over the fairing and sufficient
freedom of movement below.

Please take into account that any fairing makes
the tricycle more prone to crosswind influ­ences. In strong wind or gusts of wind unsafe
situations may occur. Please remove the fair­ing before riding in such weather conditions.

Front fairing „Streamer“on the Scorpion tricycle

Replacement of parts

The replacement of parts relevant for safety
(especially brakes, lighting system, stem, han­dlebar, knuckles, drive train, suspension ele­ments) should only be done with original
parts by a bicycle mechanic, since it requires a
certain degree of skill, suitable tools and me­chanical aptitude.

Any technical change you perform on your
own is at your own risk!

Danger! If any part is deformed
(e.g. due to an accident or overload), espe­cially frame, knuckles, handlebar, seat
mountings, pedals, cranks and brakes, it is
not allowed to use it any further or repair
it. Do not try to straighten bent parts. You
must replace them for your own safety. If
you do not replace a damaged part it can
result in a total failure of the part and you
may be seriously injured!

Do not take kids with you

HP V

ELOTECHNIK tricycles are not designed

for the transport of children. You are not al­lowed to mount a child's seat. It is only al­lowed to transport children in a trailer that
has been specially designed for that purpose.

Pedelec system

Instructions for the use and safety of the op­tional pedelec systems are referred in the sys­tems manufacturer's manuals. Please read
them carefully before use.

Trailer on Scorpion fs 26 /Enduro,
Scorpion plus 20 and Scorpion plus 26

You are allowed to use trailers (double trail
only) up to 40 kg (88 lbs).

We recommend using a trailer hitch mounted
to the rear dropout. Please make sure the
maximum allowed load on the trailer hitch is
not exceeded.

Always check that the suspension and the
trailer still work properly after you have
mounted the trailer.

When using pedelec systems, you may need
special accessories from HP V

ELOTECHNIK to

mount the trailer coupling.

Safety instructions (bicycle)

12

Trailer on Scorpion, Scorpion fx, Scor­pion fs 20, Scorpion plus 20

You are allowed to use trailers (double trail
only) up to 40 kg (88 lbs). When using a rear
rack, you will need our special
HP V

ELOTECHNIK / WEBER coupling.

Please make sure the maximum allowed load
on the trailer hitch is not exceeded.

Z

WEIPLUSZWEI offers a special, lowered cou-

pling for Chariot trailers on 20 inch rear
wheels.

Always check that the suspension and the
trailer still work properly after you have
mounted the trailer.

When using pedelec systems, you may need
special accessories from HP

VELOTECHNIK to

mount the trailer coupling.

Trailer on Gekko fx 20 and Gekko fx 26

You are allowed to use trailers (double trail
only) up to 40 kg (88 lbs). When using a rear
rack, you will need our special
HP V

ELOTECHNIK / WEBER coupling.

Please make sure the maximum allowed load
on the trailer hitch is not exceeded.

Z

WEIPLUSZWEI offers a special, lowered cou-

pling for Chariot trailers on 20 inch rear
wheels.

13

Safety instructions

Safety instructions (S-Pedelec)

Attention! The situation de­scribed below is valid for Germany only.
For legal requirements in your country,
please contact the authorities.

Legal requirements

According to law, the Scorpion fs 26 S­Pedelec is not a bicycle but a motor vehicle
class L2E (three-wheeled small motorcycles
with a maximum design speed up to 45 km/h).
The construction speed, that is the speed that
the vehicle will reach without using muscle
power, is 20 km/h. With additional power
from the rider’s muscles, up to 45 km/h can
be reached. At that speed, the motor assis­tance is switched of completely.

To be allowed to use the S-Pedelec on public
roads, there must be an operating licence for
it and it must be equipped with a insurance
plate.

The operating licence is provided by
HP V

ELOTECHNIK together with the vehicle

and needs to be handed out to the customer
by the dealer. The keeper of the Scorpion fs
26 S-Pedelec must contract a motor vehicle
liability insurance and will receive an insurance
plate in doing so.

The operating licence already assures that the
S-Pedelec meets all legal requirements for tak­ing part in public traffic in Germany by the
time it is being put into operation. The rider
always has to carry the operating licence and
the insurance card while riding.

By the time this manual was edited the follow­ing regulations apply in Germany:

The rider must wear a proper helmet while
riding the S-Pedelec.

To ride the Scorpion fs 26 S-Pedelec a driving
license class M or AM is required.

Please catch up on present regulations in your
country regarding driving licences, the use of
bicycle lanes, riding on paths away from the
road, wearing helmets etc. frequently.

Exchanging parts

Exchanging parts may invalidate the operating
licence of your S-Pedelec.

When issuing the operating licence some
parts are defined that can only be exchanged
by parts identical in construction. Such are:

• frame parts

• chassis parts

• wheels

• propulsion unit: motor, accumulator, con-

sole

• brakes

• lighting system

• handlebars, stem

• console for insurance plate and rear light

and license plate illumination

The following parts are only allowed to be
exchanged by parts including design approval:

• tires (see p. 58)

• rear mirror

The following parts may be exchanged by
parts recommended by HP V

ELOTECHNIK:

• springs and dampers

• brake pads

• seat (BodyLink to ErgoMesh or ErgoMesh

XL and vice versa, not ErgoMesh HS or
BodyLink with long seat connection sheets)

• fenders

Safety instructions (S-Pedelec)

14

Parts with no exchange restrictions are the
following:

• gearing system, chain rings, sprockets

• cranks

• pedals (with reflectors incl. design approval)

• grips

• tubes

Danger! If any part is deformed
(e.g. due to an accident or overload), espe­cially frame, knuckles, handlebar, seat
mountings, pedals, cranks and brakes, it is
not allowed to use it any further or repair
it. Do not try to straighten bent parts. You
must replace them for your own safety. If
you do not replace a damaged part it can
result in a total failure of the part and you
may be seriously injured!

There is a “anti-manipulation label” mounted
to the vehicle which contains information
about some of the components that were de­fined during the process of design approval.
This label must not be removed!

Identification- and anti manipulation plate

Identification plate

There is a identification plate fixed to the
frame which contains the most important in­formation about vehicle and manufacturer.
This plate must not be removed!

Added parts and accessories

Additional accessories may invalidate the op­erating licence or impair the function of your
S-Pedelec. This may also be valid for accesso­ries and parts that are not in the category of
parts that can only be exchanged with parts
identical in construction. Before mounting
parts and accessories, it is recommended to
contact your bicycle dealer or a vehicle ex­amination organisation (like TÜV, Dekra,
GTÜ...).

Safety instructions (S-Pedelec)

15

Safety instructions

Fairings

As a front fairing for Scorpion fs 26 S-Pedelec
you may use the Streamer fairing offered by
HP V

ELOTECHNIK. Please take care to assure a

good vision over the fairing and sufficient
freedom of movement below.

Please take into account that any fairing makes
the tricycle more prone to crosswind influ­ences. In strong wind or gusts of wind unsafe
situations may occur. Please remove the fair­ing before riding in such weather conditions.

The front fairing„Streamer“ on the S-Pedelec

S-Pedelec system

Instructions for the use and safety of the S­Pedelec systems are referred in the systems
manufacturer's manuals. Please read them
carefully before use.

No riding without accumulator

According to the regulations in your country,
it might not be allowed to ride the Scor­pion fs 26 S-Pedelec without a properly
charged accumulator installed. The accumula­tor provides electric energy for lighting sys­tem and brake light. Without accumulator,
these features will not work.

No alteration of parts

Attention! You are not allowed
to perform any work on the parts of the
tricycle, especially frame, fork, handlebar
and seat, which might endanger their solid­ity.

These works include drilling holes, welding,
brazing, paint methods that add heat or any
other chemical treatment. If any of these
works is done improperly it may result in a
loss of strength by direct damage or increased
susceptibility to corrosion.

Do not take kids with you

The transport of children with the Scor­pion fs 26 S-Pedelec is not allowed.
You are not allowed to mount a child's seat.

Trailers

Towing a child trailer is not allowed.

It is allowed to tow a trailer for goods (multi­track only). It must be type approved. Its
weight must not exceed 40 kg.

We recommend using a trailer hitch mounted
to the rear dropout. Please make sure the
maximum allowed load on the trailer hitch is
not exceeded. Always check that the suspen­sion and the trailer still work properly after
you have mounted the trailer.

Because of the S-Pedelec system of Scorpion
fs 26 S-Pedelec, you may need special acces­sories from HP V

ELOTECHNIK to mount the

trailer coupling.

16

Riding a recumbent tricycle

Learning the new riding technique

Your new tricycle has been assembled by
your dealer and adjusted together with you as
described on the pages 19 and following in the
chapter "Adjusting your new tricycle". Before
you sit down on your tricycle and enjoy your
first ride please make yourself familiar with
the instructions on riding technique and han­dling.

To ride this recumbent you will have to make
yourself acquainted with the different riding
position. Make sure that you and all other fu­ture users of this tricycle will have read this
manual carefully prior to the first ride. If you
are in doubt please consult your local dealer.

Before the first ride the users of this recum­bent have to practice and make themselves
familiar with the different handling. We rec­ommend to practice on a quiet road away
from traffic. Before you ride the tricycle in
traffic you must master the handling com­pletely.

Attention! When getting on and
off the tricycle, make sure to avoid pulling
at the handle bars or stepping on the tie
rods. To get off the tricycle, sit upright on
the front seat edge and then stand up. Grip
the front wheels or the seat back as extra
support, not the handlebars. If you pull
firmly at the handlebars, the steering can
be damaged.

Danger! Never touch the
ground with your feet while the tricycle is
still moving. The feet could be caught on
the ground and be pulled backwards and
dragged under the cross bar which could
lead to a serious injury. We strongly rec­ommend using a pedal binding system like
clipless pedals or toe clips and straps.

Keep all three wheels on the ground while
riding. If you are cornering too fast, your tri­cycle can be upset and fall over. Lean into
curves when turning sharply. At high speed,
keep your upper body quiet as any upper
body movements can influence the steering of
the tricycle.

Practice cornering away from traffic to learn
what speed is safe at a specific turning angle.

If you lift up a front wheel, immediately steer
in the opposite direction to bring it safely
back to the ground.

Danger! Please be aware that
due to your low seat height other road us­ers may notice you very late. Ride anticipa­tory with this in mind.

This is especially important while riding in
darkness. You yourself have a much better
view than others perceive you. Ride defen­sively. We recommend mounting a well visible
and reflecting flag to the tricycle while using it
in traffic. Find more information about lighting
systems on page 42. Please ask your dealer for
more information.

Handling instructions

Riding a recumbent tricycle

17

Handling instructions

How to ride correctly and safely

Attention! Always carry your
tricycle over stairs and curb stones. Do
not ride through big road holes. Especially
when road holes are filled with water it is
very difficult to guess how deep they really
are.

In case you hit such an obstacle frame and
steering may be damaged which can result in a
serious fall. At first, the damage may be unno­ticed. Please check your tricycle immediately
for deformations and cracks. If you are in
doubt please consult your local dealer.

Do not ride freehand

Danger! In order to ride safely
you have to keep both hands at the han­dlebar. Even when signalling keep at least
one hand at the handlebar. Otherwise, un­foreseen bumps in the road or oscillations
of the steering may lead to a serious fall.

How to ride correctly and safely

Always adjust your speed to the traffic, the
road and the weather conditions. Ride slowly
in curves and on unknown roads. Always ride
at a safe distance from other road users, and
when you ride in a group never ride side by
side.

When you approach a traffic light never ride
past the line of waiting cars since even the
most attentive car driver may not see you due
to your low riding position.

When riding the S-Pedelec, be aware of the
higher speed level this vehicle provides. It may
be unfamiliar for other people in traffic. Ride

defensively. Only ride at higher speeds where
and when this is safe!

Wear protective clothing

Riding a tricycle is a potentially dangerous
sport where accidents can happen even when
you take care of every safety instruction pre­scribed.

We recommend you to wear an approved bi­cycle helmet that fits well. Protect yourself by
wearing special sports clothing that fits tight
and is reflective. If you're wearing wide pants
use clips to protect them from getting caught
in the chain – or use an old fashioned method
and put the pants in your sockets.

When you fall with a recumbent you’ll usually
land on the side of your hips and your hands.
Wearing reinforced cycling shorts and gloves
reduces the danger of skin injuries considera­bly.

Use clipless pedals

The pedals of your recumbent tricycle can be
upgraded on demand with a binding system.
As soon as you are comfortable with riding
your Scorpion you should use those clipless
pedals. Due to the rigid connection between
shoe and pedal you don't have to keep your
foot on the pedals with pressure anymore.
This enables a more relaxed and round pedal­ling movement where you may even pull a lit­tle on the pedals. Without this connection to
the pedals your feet may come off suddenly
which may result in a fall. Modern system
pedals with binding therefore contribute to
safe riding.

At first you will have to practice with these
pedals to make sure that you can get off
quickly in a dangerous situation. Please read
the manual of the pedal manufacturer that
comes with this manual and have your dealer
explain the use of the pedals to you. In the
beginning set the release force of the binding

Riding a recumbent tricycle

18

to a low value to make sure you can get off
safely.

Please use exclusively the original shoe plates
/ cleats from the manufacturer of the pedals,
do not use any other brand. If you're using
shoe plates that are not authorised the bind­ing system won't work properly.

Slowly increase the strain

We recommend you to perform only short
rides without much power during the first
weeks.

Always use a low gear and ride with a high
pedalling frequency. Only after having ac­quired some training do increase the strain
slowly.

When you ride on a recumbent you use dif­ferent muscles than on a conventional bicycle,
and they have to be trained first. The very
high position of the bottom bracket requires
your muscles and blood transport system to
slowly familiarise with the new position.

In case of an overload the blood circulation in
your legs may be affected which shows in loss
of power, a prickling in the toes, falling asleep
of the legs or cramps. When you feature a
sporty way of riding it can take up to 6
months until you have become accustomed to
your new recumbent.

If there is pain in your knees occuring while
riding this is usually the result of too much
power put into pedalling. The good support of
the back sometimes misleads to putting the
full power of the legs in the pedal, similar to
the leg training machines in a fitness center.
When you repeat it regularly it is harmful for
the knees. Pain in the knees often results from
an overuse of the muscles in the knee that can
also be strengthened by exercise.

Also, a wrong adjustment of the front boom
to the leg length (in most cases too short) can
lead to pain in the knees.

19

Handling instructions

Adjusting your new tricycle

Your position on the recumbent bicycle is es­sential for your riding comfort, well-being and
efficient cycling. Therefore you should adjust
the frame, seat, handlebar and suspension to
your individual requirements.

In order to adapt the bicycle as closely as pos­sible to your body dimensions and to find
your ideal position you need to adjust the
front boom, seat and handlebars.

Danger! All procedures de­scribed here require a certain degree of
skill, suitable tools and mechanical aptitude.
After any adjustment perform a static
check and take a test ride on a quiet
street, away from traffic. If you have any
doubts please contact your local dealer.

If your tricycle is equipped with the optional
front boom-quick adjust, please read the in­structions in the separate manual in addition
to the following instructions.

Adjusting the seat position

For all Scorpion models, there are two alter­native Seats available: The BodyLink-seat and
the ErgoMesh seat. In the following, the de­tailed setting options for both seats are de­scribed.

On the Gekko models, the seat is integrated
into the frame and remains on the tricycle.

The BodyLink-seat for Scorpion,
Scorpion fx, Scorpion fs 20,
Scorpion fs 26 /S-Pedelec /Enduro,
Scorpion plus 20 /plus 26

The BodyLink seat allows adjustment of
length, seat back angle and lower seat angle.
The adjustment of the seat length and the
proper seat angle is crucial for a comfortable
feeling while riding your recumbent.

The upper curve of the seat back in the area
of the shoulder blades determines the correct
seat length: Through this shape the shoulder
and neck area is lifted from the recumbent
position so that the head rests in a natural and
relaxed position. For this reason you should­n't need a head rest if you have the right seat
position. On long rides, a head rest can in­crease your riding comfort as you can relax
your neck for a few seconds by leaning back.
You can mount our custom headrest to your
existing seat.

The seat is too small when you have the im­pression that your back is pressed too much
into a "hunchback". It is too large when you
have the impression that the seat angle is too
far leaned back when you are in the most up­right position, or when you hit the upper seat
edge with the back of your head when you
look upwards.

Seat adjustment on tricycles with BodyLink-seats

Adjusting the seat length

Take off the seat cover (see page 21). Open
the quick release lever for the seat back angle
adjustment, so that the seat is not bent with
inner tension. Loosen the 4 screws at the in­ner side of the seat back with an allen key
SW4 a few turns. Step behind your tricycle
and hold the seat back with both hands. Pull
or push the seat back to achieve the pre­ferred seat length. To achieve the smallest

Adjusting your new tricycle

20

possible seat length, move the 2 upper screws
from the top to the middle holes.

Tighten all 4 screws with 5 – 6 Nm. Move the
seat back rest to the preferred angle and
close the quick release lever firmly. Reinstall
the seat cover

Attention! Do not loosen or
tighten the 4 screws in the lower seat part
to adjust the seat length. Maximum tighten­ing torque of these screws is 3 – 4 Nm.

Attention! To avoid noise from
the seat when loaded, the contact surfaces
between the two seat shells need to be
separated by self-adhesive plastic sheets
and all contact surfaces of seat and seat
mountings and frame need to be lubricated
with grease.

Length adjustment of the Airflow cushion

The optional Airflow-cushion consists of two
parts that connect in a V-type shape. Loosen
the Velcro mounting of the upper part, and
place it in the desired position, than fasten the
Velcro.

Adjusting the seat back angle

A great advantage of the BodyLink seat on
your recumbent tricycle is the possibility to
adjust the seat back angle very quickly. For
beginners or rides in the city you can choose
an upright seat position for a better view, and
for longer rides you can choose a flat position
for better aerodynamics.

The seat back is fastened with a quick release
lever on a slotted aluminium seat mounting.
You can adjust the seat back angle by 10 de­grees by simply opening the quick release le-

ver. In the medium seat position the angle is
about 35° from horizontal.

Adjusting the seat back angle is easy when you
push the seat back with your hands on the
backside close to the seat mounting into the
desired position. By pulling at the upper seat
edge, tension may be created which causes
the adjustment mechanism to lock up.

Because of the flexibility of the BodyLink seat
and the special shape of the seat mountings,
the seat effectively pivots around a central
axis, approximately in the area of the lower
lumbar vertebrae. This is the place where you
support most of your pedalling force while
riding, so this point determines the distance
to the pedals. The advantage of this design is
that you adjust the distance from the seat to
the bottom bracket only once as described
above; a change in the seat angle does not re­quire an adjustment of the front boom.

Adjusting the front seat edge

The front seat edge can be slightly lowered to
accommodate smaller riders. With a lower
front seat edge, it is easier to put your feet on
the ground without pressure from the seat
edge on the back of your legs. With a higher
front seat edge, the seat will give more sup­port and avoid the feeling of „sliding down the
seat“ that occurs with upright seat angles.

To adjust the front seat edge, open the quick
release lever at both the lower and the upper
seat half, so that the seat is not under inner
tension. Thus you need less force for the ad­justment. Push or pull the seat front edge
firmly to reach the desired position and close
the quick release lever firmly. Then adjust the
seat back angle as described above.

If the quick release lever pressure is to loose
when closed, open the lever and turn the
screw on the end of the quick release axle
clockwise. The low profile design of the screw
head gives more clearance for the drive train.

Adjusting your new tricycle

21

Handling instructions

Adjusting the lumbar support

The BodyLink seat is ergonomically shaped
and supports the natural S-curve of your spi­ne. Forces from pedalling are supported in the
area of your lower back just above your hips.
The amount of support in this area (lumbar
support) is adjustable by moving the seat back
and lower seat against each other.

To get more lumbar support, lower the seat
front edge and put the seat back in a more
reclined position.

To get less lumbar support, rise the front seat
edge and put the seat back more upright.

For maximum adjustment, loosen the 4
screws for the seat length adjustment in the
seat back. Thus the lobes of the lower seat
part can move more easily into the desired
shape. Tighten the screws and quick releases
as described above.

Attention! The three quick re­leases have to be closed firmly (tightening
force 15-20 kg / 45 lbs) to safely hold the
seat. You must not open them while riding.
After they have been closed the imprint
"close" must be visible. If the quick releases
are not properly tightened the seat can
move while riding and you may lose con­trol over your tricycle.
Please pay attention to the instructions
about quick release levers on page 8.

Seat cushion

The standard seat cushion consists of a 1,4 cm
thick layer of flexible EVA foam. This is a black
foam material with closed cells that is also
used in the production of high quality camping
mats. It feels very comfortable without ap­pearing too soft or spongy. It is waterproof so
you can dry your seat with a sweep of your
hand in case your bicycle has become wet.

In order to take off the seat cushion lift up the
upper part a little bit from the seat. Then you
grab the cushion on both sides together with
the end of the Velcro that sticks out slightly
and remove the cushion slowly. In case the
Velcro comes off fasten it again with a good
glue.

Attention! The seat cushion is
fastened with Velcro and you can take it
off. For this purpose it is important not to
simply grab the foam and take it off since
the Velcro could come off.

Attention! Never expose the
seat cushion to extreme heat or focused
sunlight. The material warms up consid­erably. The heat may melt the glue of the
Velcro. The seat cushion can be damaged
when the rays of the sun are bundled
through a lens. Take care to never leave
any bubble wrap on the seat in the sun.
The air bubbles in the film act like a burn­ing glass and shrink the seat cushion.

For better ventilation, the Airflow Cushion is
available as accessory. This cushion consists of
several layers: A rigid mesh and a soft mesh,
which provides for an approximately 1 cm
thick air cushion with excellent circulation.
These two layers are wrapped up in a cover
that consists of fine mesh like it is known
from high quality rucksacks. You can wash the
Airflow Cushion at 30° centigrade and it dries
very quickly.

The seat cushion suffers from wear by con­stant use. The mesh parts under punctual
pressure can be pressed together perma­nently after some time of usage. In order to
still provide a good riding comfort, the Air-

Adjusting your new tricycle

22

flow Cushion features additional rigid mesh
padding.

Raincover

To keep the seat dry when your tricycle is
parked you can additionally purchase a rain­cover. It can be carried in the optional Micro­bag or in the bag the ErgoMesh seat is
equipped standard with.

Attention! Don’t sit down on

the raincover. It may get damaged.

The ErgoMesh-seat for Scorpion, Scor­pion fx, Scorpion fs 20, Scorpion fs 26
/S-Pedelec /Enduro, Scorpion plus 20
/plus 26

The ErgoMesh seat is ergonomically shaped
and supports the natural S-curve of your spi­ne. Forces from pedalling are supported in the
area of your lower back just above your hips
(lumbar support).

Eight tension belts on the back side of the
seat allow the adjustment oft the seat net to
your needs.

Does the seat feel to soft or gives you the
feeling of sitting on the seat frame, increase
the tension of the belts on the back side of
the seat.

Is it hard or uncomfortable, or do you feel li­ke slipping off when going through curves, re­lease the belts in the relating area.

It may be necessary to put a high force on the
belts to apply sufficient tension to the belts. If
it can not be done by hand, make use of a flat
nose pliers and pull the lose end of the belts
firmly. To easily loosen the belt, pull up the
round end of the strap retainer.

The angle of all ErgoMesh-seats can be ad­justed. Loosen the upper and the lower quick-

release lever – the middle lever should remain
closed.

Move the seat into the desired angle. Then
close the upper and lower quick-release lever,
regarding the sheets are completely covered
by the hole diameter of the clamping surface.

To adapt the tricycle perfectly to your needs,
we offer the following versions of the Ergo­Mesh-Seat besides the standard version.

ErgoMesh-seat standard (l.) and ErgoMesh HS (r.)

The ErgoMesh XL-versions

All ErgoMesh-seats are available as XL ver­sion. These are 3 cm longer and 5 cm wider
than the standard versions. They are meant to
give strongly build persons a comfortable seat
option.

The ErgoMesh plus versions

The ErgoMesh-plus seats have been designed
to simplify getting on and off the tricycle.
With a plus of 11 cm seat height compared to
the ErgoMesh-standard seats, they give you a
better overview in traffic.

Attention! When using the Er­goMesh plus seats, be careful when riding
through bends. Due to the increased
height the tricycle may tend to tip over
easily.

Adjusting your new tricycle

23

Handling instructions

The Gekko fx 20 mesh-seat

The Gekko fx 20 is equipped with a mesh seat
which needs not to be removed for folding
the tricycle. Using eight straps, the seat sur­face can be adjusted individually to your back.
The backrest angle is fully adjustable with a
quick release. The seat is ergonomically
shaped and supports the natural S-curve of
your spine. Forces from pedalling are sup­ported in the area of your lower back just
above your hips. The seat is bowed up in this
area (lumbar support).

The adjustment of the seat mesh and the
proper seat angle is crucial for a comfortable
feeling while riding your recumbent.

The Gekko fx 20 mesh-seat remains on the tricycle
when folding

Adjusting the seat mesh

By means of eight straps on the backside and
underside of the seat frame the tension of the
seat mesh can be adjusted according to your
needs. If the seat feels too soft, you sink in
too far at one spot or you sit on the seat
frame you’ll have to tighten the straps in that
area. If there is some spot where the seat
feels too hard and uncomfortable or you
don’t have enough lateral support you’ll have
to loosen the straps in the respective area.
You can use gripping pliers to tighten the
straps in case the force you can apply with
your hand is not enough. To loosen a strap
the semicircular side of the plastic connector

must be lifted to release the strap out of the
connector.

You can use gripping pliers to tighten the
straps in case the force you can apply with
your hand is not enough. To loosen a strap
the semicircular side of the plastic connector
must be lifted to release the strap out of the
connector.

Adjusting the seat back angle

A great advantage of the mesh seat on your
Gekko is the possibility to adjust the seat back
angle very quickly. For beginners or rides in
the city you can choose an upright seat posi­tion for a better view, and for longer rides
you can choose a flat position for better
aerodynamics. The seat back is fastened with
a quick release lever on a slotted aluminium
seat mounting. You can adjust the seat back
angle by 8 degrees by simply opening the
quick release lever. In the medium seat posi­tion the angle is about 38° from horizontal.
Having set up your desired seat back angle
close the quick release tightly to make sure
the seat back will not move during the ride.

Attention! Always close the
quick release at the seat back tightly. The
seat is a structural part of the tricycle
frame. An opened quick release may lead
to frame damage.
Please pay attention to the instructions
about quick release levers page 8.

Adjusting your new tricycle

24

The head rest

Both seat types can be equipped with a head /
neck rest which is adjustable in height and an­gle.

To relax the muscles in your neck on long
rides you can purchase a head / neck rest to
mount on the seat frame. Its height and incli­nation is adjustable at the clamp. Wearing a
helmet the headrest pad should be positioned
under the lower helmet edge next to your
neck. Adjust the inclination in a way that the
headrest does just not touch your neck/head
while riding. It may be necessary to cut the
two tubes protruding the clamp on the under­side to prevent them from touching your
back.

Use the long holes and the screw hidden un­der the cushion (BodyLink-seat) or the
mounting clamp (ErgoMesh- and Gekko-seat)
for setting up the correct position. (There is
also a mounting clamp with quick-release lev­ers available.)

Attention! Do not push or carry
your tricycle on the head rest, this may
damage the head rest or the seat!

25

Handling instructions

Adjusting to your size

Adjusting the front boom

In order to adjust the leg length you have to
move the front boom (the front part of the
frame where the cranks are mounted) in the
main frame.

Loosing the bolts to adjust the front boom.

Unscrew the bolts M8x35 under the main
tube with a 6 mm Allen key. Take a grip on
the front derailleur tube or both cranks and
move the front boom further into the frame
or pull it out while cautiously turning it.

Before you pull out the front boom shift the
chain to the smallest chain ring and sprocket.
Turn the cranks a little bit backwards while
pulling. Thus the chain is not under tension.

Attention! After you have un­screwed the clamping bolts take them off
and examine them for deformation. Lubri­cate threads and heads thoroughly. Then
re-fit the bolts. If they don't turn easily you
will have to replace the bolts.

Adjust the front boom in a way that your leg
is fully extended when your heel (wearing flat
shoes) is in the foremost position on the
pedal. Experience shows that the pedal-to-

seat distance on a recumbent can be slightly
longer than on a conventional bicycle.

While you are pedalling, the ball of your foot
should be positioned above the centre of the
pedal axle.

It is important that your leg is not fully
straightened when the crank is in the fore­most position. If the distance is too long it is
difficult to overcome this dead point, pedalling
becomes uncomfortable and there is too
much strain on the sinews of your feet and
legs. If the distance is too short you may suf­fer from knee pain.

Danger! When you insert the
front boom, the front boom and the inner
wall of the tube must be totally free from
grease, otherwise it will not clamp prop­erly and may turn while you are riding.
This can result in serious accidents.

Adjust the front boom so that your knee will not be fully
straightened when pedalling.

Adjusting to your size

26

Attention! When you move the
front boom take care that its end does not
damage any light cables that possibly come
out of the main frame. Please inform your­self about the length of the front boom on
your tricycle before you do any work.
While moving the front boom you also
have to move the light cables. The light ca­ble must never be stressed by pulling.

For riders with short leg length the front
boom has to be cut by a bicycle mechanic, so
it can be inserted maximum possible. It is im­portant to trim the end of the tube neatly.

The bare metal of the shortened tube end has
to be protected against corrosion with a paint
stick or wax spray.

The maximum insertion of the front boom is
limited by possible heel cycle of the frame’s
cross bar, depending on the rider’s shoe size.
Please check before riding your tricycle that
there is enough heel clearance. For shorter
riders under 175 cm body height we recom­mend to use shorter cranks.

On the left underside of the front boom there
is a fine line. Align this line with the sticker on
the main tube’s front end right above the
clamping bolts to adjust the bottom bracket
axle to a horizontal position. Additionally, you
can look beyond the bottom bracket shell at
the rear wheel axle and align the front boom
parallel to it. Align your eyes with the bottom
bracket axle and not the front derailleur tube.
Then sit down on your tricycle and check the
position.

Attention! The minimum inser­tion depth of the front boom into the main
frame is 8 cm (3 1/5"). The end of the front
boom must not be visible in the clamping
slot when you look at the main frame from
below, since this may result in a damage of
the frame.

The rear end of the front boon must never be visible in
the clamping slot.

Tighten the bolts with a torque wrench
(tightening torque 14 – 16 Nm). On your first
ride check whether there is sufficient clamp­ing.

The plastic bush between front boom and main frame
must be visible at all time.