User guide and terms of guarantee
2
Bicycle manufacturer
Development
b’Twin designs and develops product ranges for all purposes. Our multidisciplinary team is driven by a
passion for bikes coupled with technical expertise. B’Twin products are created by our engineers, athletes
and designers.
Innovation
As a leading European manufacturer, we have established an innovative partnership with the B’Twin
research centre so that you can enjoy your passion to the full.
Design
Our design office ensures that our products satisfy your desires, just like B’Twin.
They pay particular attention to ensuring that the technical features, comfort and look of our bicycles are
perfectly suited to their practical use. Modernity, simplicity and passion guide our imagination.
Fatigue test
Just like b'Twin, we are unswerving in testing our prototypes b’Twin :
– more than 250 components tested to select 74.
– more than 50 prototypes tested during test assignments.
– more than 3000 hours of machine tests in our workshops.
3
COMPLIES WITH SAFETY REQUIREMENTS
Thank you for purchasing a B’Twin bicycle
You have just bought a B’Twin bicycle, and to ensure your continuing happiness with it, please read this user guide:
it provides all the information needed to correctly use, adjust and maintain your B’Twin bicycle.
It is important that you keep this guide.
This general guide and manufacturer's guides for each component (derailer, brakes, fork, etc...) can be viewed on www.btwin.com
CONTENTS
CONTENTS............................................................................................................................................................................................................................................................... 3
General warning .............................................................................................................................................................................................................................................. 4
Mini bicycle glossary........................................................................................................................................................................................................................ 4
A BICYCLE FOR EVERY PURPOSE, AND ITS LIMITS .................................................................................................................................................... 5
General usage restrictions.......................................................................................................................................................................................................... 5
Storage conditions............................................................................................................................................................................................................................. 5
Types of bicycle and their uses ............................................................................................................................................................................................. 5
RECOMMENDATIONS FOR CYCLING IN COMPLETE SAFETY .......................................................................................................................... 6
HOW TO ADJUST YOUR POSITION ON THE BICYCLE ............................................................................................................................................... 8
SAFETY CHECKS BEFORE USE ................................................................................................................................................................................................................ 9
ADJUSTMENTS AFTER SEVERAL HOURS' USE ........................................................................................................................................................................ 10
MAINTAINING YOUR BIKE ........................................................................................................................................................................................................................... 10
A - REGULAR MAINTENANCE AND CHECKS .............................................................................................................................................................. 11
B - NECESSARY TOOLS .................................................................................................................................................................................................................... 12
C - CLEANING ......................................................................................................................................................................................................................................... 12
D - LUBRICATION .................................................................................................................................................................................................................................. 12
E - TIGHTENING TORQUES........................................................................................................................................................................................................... 13
F - REMOVING – REPLACING A WHEEL ........................................................................................................................................................................... 13
G - USING QUICK-RELEASE ......................................................................................................................................................................................................... 15
H - MOUNTING THE PEDALS ..................................................................................................................................................................................................... 15
I - BRAKING SYSTEM.......................................................................................................................................................................................................................... 16
1 - Using the brakes.................................................................................................................................................................................................................... 16
2 - Checking the brakes .......................................................................................................................................................................................................... 16
3 - How should the brakes be adjusted? ............................................................................................................................................................... 16
J - USING THE GEAR SYSTEM .................................................................................................................................................................................................... 18
K - ADJUSTING THE DERAILER GEAR SYSTEM ......................................................................................................................................................... 19
1 - Adjusting rear derailer travel .................................................................................................................................................................................... 19
2 - Adjusting front derailer movement ................................................................................................................................................................... 19
3 - Adjusting derailer tension ........................................................................................................................................................................................... 19
L - ADJUSTING IN-HUB GEARS .............................................................................................................................................................................................. 20
M- ADJUSTING SINGLE SPEED GEARS ............................................................................................................................................................................. 20
N - ADJUSTING SUSPENSION ................................................................................................................................................................................................... 20
ASSEMBLING ACCESSORIES ............................................................................................................................................................................................................... 20
GUARANTEE CHARTER ............................................................................................................................................................................................................................. 22
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GENERAL WARNING
Like any sport, cycling can cause injury and damage. By using this bicycle, you accept responsibility for this risk. b’Twin cannot accept any
liability if the product is modified by the user. You should know and practice the rules of the Highway Code. Caring for and using your bicycle
correctly are your responsibility and reduce the risk of accidents. Caring for your bicycle correctly will preserve its original usage and safety
features. Cycling, in whatever form, is not without risk. Always wear a correctly fitted and adjusted helmet.
Supplement to the user’s guide:
If your bicycle is equipped with specific components (for example: adjustable suspension fork, hydraulic brakes, frame shock absorbers, ),
your retailer will also give you the individual instructions for them.
Maintenance, adjustment and repair:
To ensure that your bicycle is maintained properly and safely, we recommend that you have it serviced and repaired by an
authorised B’Twin after-sales service provider.
Your b’Twin retailer:
Other than this guide, your main source of information and assistance is your B’Twin store. Your retailer is your first contact for
enquiries relating to your bicycle’s maintenance, adjustment, use and guarantee.
Guarantee:
This guide also contains your bicycle’s guarantee conditions.
NB:
Bicycles and bicycle components change all the time, so it is impossible to produce an exhaustive guide. We recommend that you
consult a b 'Twin technician or retailer should you need further information.
Mini bicycle glossary:
The safety parts (front fork, handlebars and handlebar stem, seat post, brake pads, brake shoes and disk brake pads, brake cable outer casing,
hydraulic brake line, calipers, brake disks, brake levers, chain, pedals and cranks, bottom bracket axle and wheel rims) must be replaced with
original parts. Tyres and inner tubes must be replaced with compatible parts.
WARNING: Like any mechanical component, a bicycle is subject to significant stresses and strains. The different materials and components
can react differently to use or to fatigue. If a component's expected life span is exceeded, it may break suddenly, thus risking injury to the
cyclist. Cracks, chips and discolouring in areas subject to great stresses show that the component has exceeded its lifespan and should be
replaced.
Saddle
Seatpost
Brake
Cogs
Rear derailer chain
Crankset
Chain rings Pedal Rim Tyre
Disc brake
Fork
Handlebars
Stem
Frame
Seatpost clamp
Front derailer
Crank
5
A BIKE FOR EVERY PURPOSE, AND ITS LIMITS
A mini guide to help you choose correctly! Define your discipline precisely.
MOUNTAIN BIKES: These are sporty, versatile bicycles, suitable for going off-road and exploring nature. Full
suspension Leisure MTBs are ideal for forest or city riding on good roads. Full suspension Leisure MTBs provide extra
comfort. Sport and Competition MTBs are designed for all terrains. The difference lies in the weight, the quality of the
drive train and the suspension. Full suspension MTBs will allow you to ride for longer with less tiredness and more
control. They are ideal for descents, but are also comfortable on technical climbs. This bicycle, and particularly its
braking system, is designed for a maximum load of 100kg. For example, for a bicycle and accessories weighing 13 kg
with 5 kg luggage, the maximum user weight is 100 - 13 - 5 = 82 kg.
TRAIL BIKES: This is the ideal compromise between the town bike and the mountain bike. It is comfortable and
well-equipped, and is ideal for riding alone, as a family or with friends, on small country roads or off-road trails. The
wheels are narrower than an MTB's wheels and may be of a greater diameter ; so it is more comfortable on tarmac
roads. It is ideal for bike rides. This bicycle, and particularly its braking system, is designed for a maximum load of
100 kg. For example, for a bicycle and accessories weighing 13 kg with 5 kg of luggage, the maximum user weight
is 100 - 13 - 5 = 82 kg.
CITY BIKES:
ELOPS OR CITY: Fully equipped and comfortable, it is ideal for getting around in total safety on town and city roads,
in the middle of traffic. You stay clean thanks to its mudguards and chain guard. It is the supreme city bike.
TRIBAN ROAD: A bike designed for urban and peri-urban road sports. Positioned between the racing bike and the
traditional town bike, this responsive bike is designed for regular sporting middle distance rides on the road. This
bicycle, and particularly its braking system, is designed for a maximum load of 100kg. For example, for a bicycle and
accessories weighing 13 kg with 5 kg of luggage, the maximum user weight is 100 - 13 - 5 = 82 kg.
FOLDABLE BIKES: Specifically designed to cope with storage problems, the foldable bike is the ideal bike for getting
around town. It is a sturdy, multi-purpose and well-equipped bicycle. Easy to store: the foldable bike will take you
where you want to go, "door to door ". Its compact size makes it easy to store at home or at the office reducing any
risk of theft. You'll forget it's there. Multiple transport modes: the foldable bike is designed to help you getting around
town over long distances as a complementary mode of transport to the car, train, public transport allowing you to
reduce any breaks in your route and save time. " the problem with public transport is that it never takes you exactly
where you want to go ". Journey: the foldable bike will follow you everywhere: caravan, boat, boot of a car. Stored in
a small area, it's the ideal companion for your itinerant leisure activities.
ROAD BIKES: This is a light bike for fitness or competition use. The frame geometry is suited to each purpose:
fitness objective: stay in shape by using a light bicycle and gears adapted to your power, and sport target: discover
cycling alone or in groups on hilly rides. This bicycle’s frame geometry and components will give you a good ride,
competition target: take your training to a new level to work on your physique, and take part in competitions using
equipment approved at the highest level of competition. This bicycle, and particularly its braking system, is designed
for a maximum load of 100kg). For example, for a bicycle and accessories weighing 13 kg with 5 kg of luggage, the
maximum user weight is 100 - 13 - 5 = 82 kg.
The BMX/SUBSIN: specifically designed for acrobatic use. “Street” for stunts in town or a skate park. “Dirt” for stunt
jumps on dirt tracks. “Flat” for stunts on the ground. “Race course” for off-road circuits with bumps. We recommend
that you carefully identify your discipline before taking the plunge! This bicycle, and particularly its braking system,
is designed for a maximum load of 100kg. For example, for a bicycle and accessories weighing 13 kg with 5 kg of
luggage, the maximum user weight is 100 - 13 - 5 = 82 kg.
The 14" CHILDREN'S BIKE“ : A bicycle designed to allow children to pedal in complete safety. Easy to use,
hardwearing and fun, this upgradeable bike is designed for children aged 3 to 5 (90-105 cm), and for a maximum
user weight of 33 kg. For example, a bicycle weighs 8kg, the maximum user weight is 33-8 = 25kg. Because it is a
child's bike without any lighting, this product should not be used on the road.
CHILDREN’S BICYCLE (16” To 24“): Designed for children’s very specific needs. Whether your child is just learning
how to pedal or is already very comfortable on a bicycle, this bike is for all uses, by age group. It is a solid, easy to use,
fun and well-equipped bicycle. It is the ideal partner for learning and having fun in complete safety. These bicycles,
and particularly their braking systems, are designed for a maximum weight of 45kg for the 16", 55kg for the 20"
and 70 kg for the 24". For example, for a 16” bicycle and accessories weighing 10 kg carrying 1 kg of luggage, the
maximum user weight is 45 - 10 - 1 = 34 kg.
General usage restrictions:
Your bicycle is not designed to be used:
• in sand.
• in the water (the hubs and bottom bracket should not
be submerged).
• in a salty environment (e.g.: on the beach).
Storage conditions
Your bicycle is not designed to be stored outdoors for
prolonged periods outside. It should be stored in a dry
and heated area (away from frost), away from corrosive
products: sea air (ex: deck of a boat), weedkiller, acids,
solvents, batteries...
MOUNTAIN BIKES
TRAIL BIKES
(BTWIN, TRIBAN TRAIL)
CITY BIKES
(ELOPS, CITY, TRIBAN road)
FOLDABLE BIKES
Road bike
BMX/SUBSIN
child's bike
(14’’, 16" to 24“)
Types of bicycle and their uses
6
RECOMMENDATIONS
FOR CYCLING IN COMPLETE SAFETY
• Always carry out a thorough check before riding. Read the
" safety checks before use section
».
• Always wear a helmet when you ride to protect your head in
the event of a fall.
• Ride with both hands on the handlebars.
• Ride in the direction of the traffic, never against it.
• Never hold on to a car or any other vehicle.
• Control your speed, avoid moving from side to side.
• Carrying baggage may reduce your visibility or control of the
bicycle and cause you to fall.
• Respect the local Highway Code, particularly with regard to
lights and bicycle bells and horns.
WARNING! Two people should never ride on a bicycle
(except tandems)
• Never ride at night or in bad weather without lights. You
must be visible to motorists and motorcyclists :
- Wear light, reflective clothing, and turn your front and rear
lights on.
- You must have a light and a reflector at the rear of your
bicycle.
- You must also have a light and a reflector at the front of your
bicycle.
- Side reflectors must be placed on the wheels.
• When cycling in the rain or on wet roads, be careful
because braking distances can increase and grip decreases
significantly.
• Wear protective equipment and clothing, such as gloves and
glasses.
• Do not wear loose clothing which may get caught in the
wheels.
NB: All our bicycles are sold with front and rear lights, as well
as rear reflectors and side reflectors fitted to the wheels).
Riding on paths: responsible behaviour and code of good
conduct.
Do not take access to paths for granted. The way you behave
when you next ride your bicycle will influence how accessible
paths will be are in the years to come:
- Stay on the roads.
- Be respectful to pedestrians and horse-riders.
- Keep skidding to a minimum.
- Respect flora and fauna.
- Avoid muddy areas.
Here are a few rules for responsible trail riding:
• Avoid leaving visible tracks
• Do not frighten animals
• Keep control of your bicycle
• Look in front of you
• Always let others pass
• Take all your rubbish with you
WARNING! when riding with children
•b’Twin recommends that helmets are worn and strongly
advises that child seats and all frame accessories are fitted
by qualified, experienced technicians. If you intend to fit
a child seat yourself, we recommend that you check with
our retailers that baggage racks and child seats are safely
compatible.
• Be careful when riding with a child seat, as it adds weight
to the rear and raises the bicycle’s centre of gravity, making
balance and turning more difficult.
• Children must always wear a helmet when riding in a child
seat or in a trailer. Please note that wearing a helmet is a legal
requirement in many countries.
• Wheels attract children's attention and present a serious
risk to young children's fingers! If children place their
fingers between the spokes or between the chain and the
chain rings, they risk trapping their fingers and/or injuring
themselves. With children’s bicycles, responsible adults must
ensure that the child knows how to use the bike, especially
the brakes.
Maintaining and controlling your bicycle.
The frame, the forks and all the components must be regularly
checked by our b 'Twin After-Sales Service team to detect the
signs of wear and/or potential deterioration (cracks, corrosion,
damage...).
These are important safety checks which help avoid accidents
and physical injury and ensure the lasting condition of your
bicycle.
7
STOP
Warning:
- MTB descents should be practiced safely.
- Ensure that the bicycle is suitable for the purpose (Descents, Cross-country, extreme Freeriding, etc).
- Ensure that the bicycle is in a perfect state of repair.
- To minimise the risk of accidents: wear a helmet, wear suitable protection, control your bicycle and… be careful!
Fitting lights: (does not apply to dynamo-type lights)
Compatible with
upright handlebars.
Diameter:
19 mm to 32 mm.
Compatible with seat
posts or seat stays.
Diameter:
19 mm to 32 mm.
Front light
A-B-C: Assembly
For best fitting, try to use the
first
hole in the strap.
D: Removal
Press the reflector (1) to push the light forwards (2).
Rear light
Assembly
- The first hole is for fitting to the seat post.
- The second hole is for fitting to seat stays.
Position the rear light horizontally using the
adjustment wheel.
Replacing the batteries:
When the red wear indicator lights up, change the batteries.
Batteries required: Two 1.5 Volt LR14 alkaline batteries.
To open, press on one of the chrome-plated strips (1)
and open by turning the light (2). Battery direction
is shown on the bulb holder and on the inner contact.
Some products may be equipped with different
but similar lighting.
Replacing the bulbs
Bulb required: 2.4 Volt 0.5A Krypton.
8
Fitting dynamo-type lights
Hub dynamo: Before removing the front wheel, disconnect the
dynamo’s electric cable.
Replacing the bulbs:
Bulbs required:
• 6 Volt / 2.4 Watt Krypton type bulb for Elops 3 and Elops 5.
6 Volt / 2.4 Watt halogen bulb for the b’Twin Pack and Elops 7.
HOW TO ADJUST YOUR POSITION ON THE BIKE
Measure your height Adjust your bicycle
Refer to your settings charts
for my bike
S (cm) Hs (cm) Hg (cm)
16“
105-109
37.5
48.5
110-114 49
115-120 49.5
Elops
S (cm) Hs (cm) Hg (cm)
155-159 55.5
+12
160-164 58
165-169 60
170-174 62.5
175-179 64.5
180-184 67
185-190 69.5
Directions for use:
Refer to the charts appended to the end of these instructions p 23.
Adjusting the seat:
The minimum seat height is the height when the seat is moved down as far as it will go and once
the clamp is locked.
For more precise
adjustment of your
bike, go to the b'Twin.
com website
Practical information Depending on the terrain you are travelling on, seat height
can be modified:
- On flat ground or when climbing, the seat should be in a high position for greater efficiency.
- When travelling downhill, the seat should be slightly lowered to improve bicycle control and to
make it easier to get over obstacles.
PLEASE NOTE INSERTION LIMIT!
For your safety, the seat should not be set further than the following warning on the
seat post: minimum insertion.
A
B
C
9
Adjusting handlebar height:
Quill stem:
Please note the quill stem insertion limit: For your safety, the stem
should not be set further than the following warning on the stem: " min.
insertion
».
Headset stem:
All MTBs fitted with aheadset stems are sold with setting rings. The
handlebar height suggested in the shop is the highest. If you would prefer to raise the handlebar position, you will need to
choose a higher stem.
Adjusting aheadset stems on your bicycle:
To reduce the height you need to use appropriate tools (T-bars 5 or 6 depending on the model - see tools chapter).
- Completely unscrew screw A, then the two B screws in the stem.
- Remove the stem.
- Take 1 or more setting rings.
- Replace the stem.
- Replace the setting rings above the stem.
- Tighten up screw A and tighten the B screws.
Checking that aheadset stems are properly fitted to your bicycle:
To check the adjustment of your stem, close the front brake and rock forwards and backwards on
your bicycle.
If you feel any movement in the steering system, tighten up screw A.
Second check: lift the front of the bicycle off the ground and turn the handlebars from side to
side.
If it's hard to turn the handlebars, unscrew the screw A.
If this procedure seems too complex, please ask the staff in the workshop at your nearest shop.
Checking that the handlebars are properly mounted in the stem.
On Elops (1, 3, 5 and 7), b’Twin Pack and BMX bicycles, the handlebars are set at a significant angle. The angular position of the
handlebars should not be modified by more than 10° compared with the assembly position (see pictures below).
• Adjusting the seat post and seat: check that the whole bicycle is solidly assembled and that the seat is solidly clamped in the frame, respecting the
minimum insertion point indicated on the tube.
• Tightening the stem: before each use, check that the stem is properly adjusted using appropriate tools (see tools chapter) and tighten to the torque
indicated. Check the value in the stem/steering system torque table.
• Tyre inflation, dimensions and mounting direction: inflate your tyres to the correct pressure, referring to the pressure range indicated on the side of
the tyre by the manufacturer; your tyre’s resistance to wear depends on it. Mount the tyre in the direction indicated on the side (the arrows indicating
the rotation direction).
• The assembly and tightening screws should be tightening according to the recommended torque settings. A screw or nut that is too tight may
elongate and lose its shape. A screw or nut that is not tight enough may move and wear out through fatigue. In both cases, this may cause the screw
or nut to break suddenly, resulting in a loss of control and the user falling.
•WARNING: Insufficient tightening of the screws between the stem and the fork, the handlebar tightening screws or the screws fastening the
handlebar extensions, may compromise the steering and lead to a loss of control and the user falling. Put the wheel between your legs and your
hands on the grips. Try to twist the entire handlebar/stem assembly around the axis of the fork. If this handlebar/stem assembly moves while the
wheel remains stationary or if the handlebar extensions turn around the handlebars, the fastening screws are not sufficiently tightened.
SAFETY CHECKS BEFORE USE
max
min. insertion
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