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IMPORTANT: This safety procedure is difficult, so it is better to contact one of our technical workshops to

carry out this type of procedure. Nevertheless, here are a few pointers for users who wish to carry out the

procedure themselves.

Maintaining disk brakes

There should be no grease or oil on disk break pads, it may seriously reduce the efficiency of braking. Before and after each ride,
check that there are no leaks in the hydraulic circuit and the wear on brake pads. Entrust maintenance of the hydraulic circuit to
the Decathlon Workshop. Refer to manufacturer's guides, available on www.btwin.com, to replace brake pads.

Replacing brake pads.

1/ Open the calipers.
2/ Remove the pad using a suitable spanner (Allen key or spanner depending on the model).
3/ Replace the pad, being careful to follow the assembly sequence of washers and spacers carefully.
4/ Tighten up the pad using a suitable spanner, using a tightening torque of between 6 and 9 Nm.
NB: some pads have a mounting direction: the arrow should face the wheel’s rotation direction when the bicycle is moving
forwards.

Replacing disk brake pads:

Replace the worn parts with the correct replacement parts obtained from qualified sources.

Replacing hub brakes:

Replace the worn parts with the correct replacement parts obtained from qualified sources.

Rim wear:

Warning to users:
Bicycles with brakes which connect the surface of the rim to the braking system are subject
to wear of the rim wall at the braking surface, as a result of the braking forces and the friction
suffered by the rim at this surface.
We recommend that users pay particular attention to this wear, because a reduction in the
thickness of the rim wall can cause tyre maintenance defects and injury.
Regularly check that the internal or external surfaces of the rims show no signs of cracking or
wear.
Do not use wheels showing signs of advanced wear of the rim's braking surface.

STOP

Chain ring

Cog

USING THE GEAR SYSTEM

Warning:
In order that the gear system functions correctly
and not to shorten the lifespan of its parts (chain,
freewheel, pedals):

• Avoid heavy, aggressive gear changes.
• Avoid crossing the chain (by using the large cog and

the large chain ring or the small cog and the small
chain wheel).

• If the chain is crossed (Diagram 2), it may be in

contact with the front derailer.

Changing gear: continue to pedal but not too hard, and move the gear shifter (lever or rotating shifter) until the chain is in place
on the selected chain ring or cog.
Each position of the shifter corresponds to a chain position on the cogs.
• If the chain does not move up onto the cog easily: you can try "overshifting" by pushing the lever slightly beyond position
without moving it into the next position.
=> If this does not work: you will need to adjust the cable tension (cf. chapter " adjusting the gear system »).
• If the chain does not move down quickly, see the chapter entitled “ adjusting the gear system ". The chain should move smoothly
between cogs.

Can be found on this type

of rim.

R SUB