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INSTRUCTION BOOK
THMTIBIA
THM Tibia en 300517-01
thm.bike
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LOREM IPSUM
LOREM IPSUM
CONTENT
Please bear in mind that your THM component is a lightweight construction manufactured
from carbon – take this into account for assembly/maintenance work and when handling the
product and proceed with caution!
INTRODUCTION
Preface................................................................4
SAFETY
Intended use ..................................................... 5
Fundamental safety precautions ..............5
Assembly & maintenance.............................5
On the road ...................................................... 6
Transport & storage .......................................6
TECHNICAL SPECIFICATIONS
Delivery specications ..................................7
Dimensions ........................................................8
Tightening Torques ........................................8
ASSEMBLY
Tibia assembly ..................................................9
Installation on the steerer tube...................9
Installation of the handlebar.......................11
MAINTENANCE
Important maintenance information ..... 12
Disposal .......................................................... 13
Before every journey ................................... 13
Regular maintenance ...................................14
WARRANTY
Materials defectliability ............................. 15
Warranty ........................................................... 15
THMTIBIA
THMTIBIA
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INTRODUCTION
SAFETY
Preface
This manual is an integral part of your THM component and it provides you with information
regarding the safe operation of your THM-Tibia stem.
Carefully read this manual prior to assembling your THM components. Always read and observe
all of the assembly and maintenance instructions in this manual, as well as those provided in
the manuals of other manufacturers whose products are used on your bicycle (Fork, headset,
handlebar, brake levers, etc.).
WARNING
Non-observance of the information contained in this manual could result in an accident and death
or serious injury.
You will encounter the following symbols and references in this manual:
The index nger instructs you to perform a particular
action.
The arrow indicates the consequence of your action.
WARNING
This safety message indicates a hazardous situation which,
if not avoided, could result in death or serious injury.
CAUTION
This safety message indicates a hazardous situation which,
if not avoided, could result in minor or moderate injury.
NOTICE
This message warns of a risk of material damage.
This refers to additional information or tips.
Retain this manual for other users of your THM components. Make sure that all users read,
understand and observe this manual.
If you ever sell or give away your THM components, this manual should be transferred to the new
owner.
Intended use
WARNING
Any use diering from that intended could cause an accident and result in death or serious injury.
The THM stem is approved for a total weight (bike+rider+luggage) up to 110 kg (242 lbs.) and can
be used on road bikes. The stem must only be used with steer tubes of 28.6
diameter and handlebars of 31.8
The THM stem is available in 80mm, 100mm, 110mm and 120mm.
±0,1
mm (1 1/4 inch) diameter.
±0,1
mm (1 1/8 inch)
Fundamental safety precautions
Always remember that riding a bicycle involves potential danger for the rider and other road users,
as well as for the bicycle and its components.
Even if protective equipment and safety devices are used, accidents resulting in death or serious
injury can still occur.
You should therefore use your common sense and avoid any unreasonable behaviour!
ASSEMBLY & MAINTENANCE
WARNING
Risk of accident caused by assembly and maintenance work which has not been conducted in a
professional manner.
- Do not overestimate your technical ability. All assembly and maintenance work should be
performed by a specialist workshop for bicycles. This is the only way to ensure the work is
conducted in a professional manner.
- Always observe all of the specied tightening torques for the screw connections.
- Only ever use original THM components which are available from your specialist dealer or directly
from THM.
- Never make any modications to your THM components.
- Check your THM components before each journey to ensure the surfaces are completely
undamaged. Send us your THM components for inspection before further use if damage is visible
(cracks, fractures, deformations, deep scratches in the paintwork which extend into the carbon
structure, large abrasions, etc.) or if you are in any doubt about their functionality.
- Always ensure your bicycle is maintained in a awless condition. Care and maintenance will
prolong the service life of your bicycle and its components and also improve your personal safety.
We hope you get a lot of joy from your THM components!
Your THM-Carbones Team
THMTIBIA THMTIBIA
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SAFETY
TECHNICAL SPECIFICATIONS
ON THE ROAD
WARNING
Risk of accident caused by erratic riding behaviour or improper equipment.
- Always ride with foresight, attention and a readiness to brake.
- Adjust your speed to the prevailing conditions (trac, weather, visibility, etc.).
- Do not use your THM-Tibia stem at ambient temperatures below -10°C (14 °F).
- Do not exceed the maximum rider weight for which your THM components have been approved
– see Dimensions, page 8.
- Do not perform jumps with your bicycle as this generates an enormous amount of force.
- Always comply with the trac regulations that are in force in the country where you are using
your bicycle.
- When riding your bicycle you should always wear a high quality cycling helmet (e.g. ANSI
certied) that is in excellent condition. Your clothing should be close-tting but not restrictive.
- Only ride your bicycle if you are in good physical condition and your bicycle and all of its
components are operating in a awless manner.
- If you are involved in a heavy fall you should not continue to ride your bicycle.
If such a case occurs, send us your THM components for inspection, even if no external damage
is visible. In your own interest you should treat all of the components on your bicycle which have
been produced by other manufacturers in the same manner.
TRANSPORT & STORAGE
WARNING
Risk of accident caused by damaged bicycle components.
- Always transport your bicycle in an appropriate and careful manner.
- Do not store your THM components at an ambient temperature below -15°C (5°F) or above 55°C
(131°F).
Risk of accident.
- Do not allow children to play with your bicycle.
Delivery specications
1
2
4
3
1 Body
2 Faceplate
3 Faceplate bolts (×4)
4 Clamping screws (×2)
Instruction book
The faceplate is designed to be compatible with Bar Fly Direct stem mount.
Please look up at the Bar Fly Website: www.barybike.com/
THMTIBIA THMTIBIA
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TECHNICAL SPECIFICATIONS
ASSEMBLY
Dimensions
D
A
E
B
C
Length
A
Stack
B
Ø Clamp diameter
C
Ø Steerer diameter
D
Angle
E
Weight ±5% g
Total weight, max.** kg
* Technical specications, dimensions and weights are to be understood with the corresponding tolerances and can
dier slightly from your THM components.
** Total weight = rider + bicycle + luggage
mm
‘‘ 1 - 1/8
º ±6º
80 100 110 120
40
31,8
76 81 84 87
110
Tibia assembly
WARNING
If not properly performed, assembly and maintenance work could cause accidents resulting in
death or serious injury.
- Do not overestimate your technical ability. All assembly and maintenance work should be
performed by a specialist workshop for bicycles. This is the only way to ensure the work is
conducted in a professional manner.
INSTALLATION ON THE STEERER TUBE
WARNING
There is a risk of accident due to sudden unexpected failure of the stem while riding if any
carbon bers on the stem are damaged during any installation procedure.
- Before starting work, make sure that the steer tube is compatible with the stem.
- Remove sharp edges and burrs and any other contamination / grease from the steer tube before
starting assembly.
- Be particularly attentive to cutting edges of shortened steer tubes and rework the edges if
necessary.
- Never exceed the max. permissible height of the lower spacers. (g. 1)
- Never exceed the max. permissible overlap of the top spacer or stem. (g. 1)
- Never exceed the tightening torque of 6N·m under any circumstances when tightening
the top cap adjusting screw. (g. 2)
- Never exceed the tightening torque of 4N·m when tightening the clamping screws on the stem.
(g. 3)
There is a risk of accident due to sudden unexpected loss of control while riding if the stem
slips on the fork steerer.
-Never apply any lubricant or grease to the steerer tube.
Tightening Torques
WARNING
Risk of accident caused by a malfunctioning stem system due to loose screw connections.
- Check the required tightening torque of all screw connections after the rst 100 km
– Retighten the connections if necessary. Repeat this check every 2500km!
N·m (lbf ·in)
min. – max.
Faceplate bolt 4 (36)
Clamp screws 4 (36)
with thread lock
WARNING
The THM Tibia stem has to be mounted with carbon assembly paste.
Applying an appropriate carbon assembly paste between
the stem clamping area and steerer tube enables the
required tightening torque to be reduced to achieve the
same clamping force.
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ASSEMBLY
ASSEMBLY
1–3mm, min. – max. !
2
2
1
1
Install the stem on the steer tube until it audibly
contacts the top spacer or the steer bearing.
Make sure that an overlap of 1mm to max. 3mm is
present between the upper edge of the top spacer
(recommended!) and between the upper edges of the
stem and steerer tube.
(g. 1)
Install the headset cap (1).
Drive in the top cap adjusting screw (2) (clockwise).
Set the bearing clearance.
(g. 2)
Align the handlebar stem straight forward in the
direction of riding.
2
Tighten the two clamping screws (3a)+(3b) alternately
to a tightening torque up to max. 4 Nm.
(g. 3)
Make sure that the assembly is locked against rotation.
The length of the clamping surface of the steer tube
should at least be 41 mm.
INSTALLATION OF THE HANDLEBAR
Slacken the clamping screws which x the handlebar to
the stem and push the handlebar in the stem from the
front.
Align the handlebar centrally.
=
=
4
Tighten the clamping-screws (A-B-C-D) of the
handlebar clamp alternately crosswise up to max. 4 Nm.
DA
BC
Do not exceed the maximum permitted tightening
torque.
The length of the clamping surface of the handlebar
should at least be 40 mm.
Make sure the distance between faceplate and stem is
even.
5
(g. 4)
(g. 5)
3a
3b
3
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MAINTENANCE
MAINTENANCE
Important maintenance information
WARNING
If not properly performed, assembly and maintenance work could cause accidents resulting in
death or serious injury.
- Do not overestimate your technical ability. All assembly and maintenance work should be
performed by a specialist workshop for bicycles. This is the only way to ensure the work is
conducted in a professional manner.
Improperly performed assembly and maintenance work could also result in a loss of your warranty
rights (liability for defects)!
WARNING
Risk of accident caused by damaged components.
- Never attempt to disassemble your THM-Tibia stem - only THM employees are authorised to do
this.
- Always read and observe all of the assembly and maintenance instructions in this manual, as
well as those provided in the manuals of other manufacturers whose products are used on your
bicycle (frame, fork, headset, etc.).
- Always observe the minimum and maximum values specied – see Technical specications,
from page 8.
- When conducting assembly steps that require a specic tightening torque, always use an
appropriate torque wrench that is designed for the tightening torque specied.
- Only ever use original THM components which are available from your specialist dealer or directly
from THM.
DISPOSAL
If THM components are defective or no longer in use, you can dispose of them with your nonrecyclable waste or domestic refuse, or ask a local waste disposal company for other disposal
methods (e.g. recycling).
Before every journey
WARNING
Risk of accident caused by material damage or improper assembly.
- Check to ensure the quick release elements and your wheels have been rmly and correctly
secured.
- Check your stem to make sure they are undamaged and functioning properly every time you use
your bike. Send us your THM-Tibia stem before further use if damage is visible (cracks, fractures,
deformations, etc.) or if you are in any doubt about their functionality.
- Check your THM components before each journey to ensure the surfaces are completely
undamaged. Send us your THM components for inspection before further use if damage is
visible (deep scratches in the paintwork which extend into the carbon structure, large abrasions,
etc.) or if you are in any doubt about their functionality.
- Do not exceed the max. total weight for which your THM components have been approved
– see Dimensions, page 8.
Always ensure your bicycle is maintained in a awless condition. Care and maintenance will
prolong the service life of your bicycle and its components and also improve your personal safety!
If you suspect that your bicycle is defective or is not functioning properly, stop using it and
contact a specialist bicycle workshop immediately!
NOTICE
Never use a high-pressure cleaner or steam cleaner to clean your bicycle, as the seals of your
bicycle components are not able to withstand the pressure. If such cleaners are used, it would
result in corrosion and material damage.
Never use caustic solvents (such as paint thinners, acetone, nitro compounds, etc.) as they can
attack the surface of your THM components.
Only use commercially available paint care products and water to clean your THM components.
Spirit or petrol should be used carefully - when using such products avoid excessive wiping and
prolonged exposure times.
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MAINTENANCE
WARRANTY
Regular maintenance
The maintenance intervals required for your bicycle depend on how often and in which weather
conditions it is used.
The following maintenance measures should be conducted more frequently if the bicycle is used
in extreme conditions (rain, dirt, long distances, etc.).
When conducting regular maintenance procedures make sure your bicycle is always clean and
well protected by lubricants and cleaning agents. Ask your specialist dealer about appropriate
lubricants and cleaning agents as well as information relating to their correct application.
WARNING
Risk of accident caused by a malfunctioning crank and stem system due to loose screw connections.
- Check the required tightening torque of all screw connections after the rst 100 km
– Retighten the connections if necessary. Repeat this check every 2500km!
Risk of accident caused by malfunctioning brakes.
- After conducting any cleaning, maintenance or repair work make sure that the braking rims of
you wheels are free from lubricants (such as grease, oil, silicon, Teon, wax or other similar
agents).
NOTICE
If you are using a hose, handle it with care - never aim the
hose directly at the bearing components (g. 1).
Clean your THM-components at regular intervals by
using water and a non-abrasive, environmentally
friendly cleaning agent.
When cleaning your THM components always check
for signs of damage (dents, cracks, scratches, large
1
abrasions, worn areas, etc.).
Periodically preserve the surface of your THM
components using a high quality protecting wax or
other similar agent.
Materials defect liability
We provide a 24-month warranty for all THM products which covers material and processing
defects.
During this period all products accepted to be defective are replaced at no cost to the user.
The liability period starts at the time the relevant THM product was purchased. Liability does
not extend to any kind of damage caused by accidents, modications, negligence or improper
handling and use.
Liability shall expire if repair work or any other work on the THM product has been conducted by
unauthorised persons.
The same shall also apply to any direct or indirect damage resulting from an action described in
the preceding sentence.
Please contact us before returning a defective THM product!
If products are returned without our previous agreement, the shipping costs incurred will
be charged to your account!
Warranty
Minor damage to your THM products will be repaired by our workshop free of charge even after
expiration of the 24-month liability period, provided that the work required does not exceed
0.5 hrs.
The decision regarding whether or not a repair is to be carried out free of charge rests solely with
us.
If the damage has been self-inicted, there is no entitlement to free repair work!
In the event of self-inicted damage please send us the product concerned for inspection. We will
then assess the level of work required and either perform the repair free of charge or send you a
quotation. It is then up to you to decide whether or not to go ahead with the repair work.
When returning a damaged product to us please ensure adequate postage costs are provided.
Any shipment which is not prepaid will be rejected and returned to the sender! In the event
of irreparable damage (e.g. caused by an accident) we will provide a 40% discount from the
respective list price if you purchase a new THM product as a replacement.
The relevant claim must be forwarded directly to THM Faserverbund-Technologie GmbH. The
irreparable product shall then remain our property.
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The company THM Faserverbund-Technologie GmbH is constantly striving to improve product
designs as technical developments continue. We therefore reserve the right to make alterations
which must not correspond to the text and illustration contained in this manual, and without
incurring obligation to alter any products previously delivered. Technical specications,
dimensions and weights are to be understood with the corresponding allowances.
Reproduction or translation of this publication, in whole or in part, is not permitted without the
written consent of the company THM Faserverbund-Technologie GmbH. All rights under the
provisions of the copyright act are reserved.
16THMTIBIA
17THMTIBIA
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THM Faserverbund-Technologie GmbH
Am Sportplatz 3
D-24791 Alt Duvenstedt
info@thm.bike
www.thm.bike
thm.bike
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