Decathlon B'TWIN Guide De L'utilisateur page 4

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.Insert seat
post into seat tube. Adjust height of seat tube in accordance with user height. The minimum insertion marker must never be
visible above the seat tube.
To determine the correct seat height, sit on the bike and place your heel on the pedal in the lowest position with the crank parallel
to the seat post. The seat is the correct height when your leg is fully extended.
How to measure and adjust height of handlebars to suit user (see chart at end of instructions).
Insert stem into pivot tube. Adjust height of stem, depending on user height, ensuring that you do not go
beyond the minimum insertion marker or as far as the stop. max
Going beyond the minimum insertion marker constitutes product misuse and may place the user in
danger.
Headset stem:
All MTBs fitted with headset 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.
Easy Park type stems:
The height of the stem cannot be adjusted.
- To unlock the «Easy Park» system, lower the safety button and lift the lever up completely.
- To lock the «Easy Park» system, place the handlebars perpendicular to the wheel, completely lower the lever the lift the safety button.
Checking that aheadset stems are properly fitted to your bicycle:
- To check the adjustment of your stem, close the front brake and rock your bike backwards and forwards.
- If you feel any movement in the steering system, tighten up screw A.
- If this procedure seems too complex, please ask the staff in the workshop at your nearest shop.
Adjusting the incline of adjustable stems
- If you wish to adjust the incline of your stem, untighten screw «C»,
- adjust the angle then tighten screw «C» to the recommended tightening torque.
Brake adjustment and use
Before every ride, check that the front and back brakes are in perfect working order. The front brake is controlled by the left brake lever (right brake lever in certain countries such as
India, China and England). The rear brake is controlled by the right brake lever (left brake lever in certain countries such as India, China and England). The brakes are a key safety
mechanism for the cyclist. They must be checked before every ride and regularly maintained and adjusted.
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