Attaching Non-Mounted Components That Come With The Bike; Lubrication; Adjusting Chain Tension; Adjusting Gears And Gear Use - Decathlon B'twin Manual Del Usuario Y Garantía

11. ATTACHING NON-MOUNTED COMPONENTS THAT COME WITH THE BIKE

All our bikes are assembled in accordance with national legislation. Non-mounted components that come with the bike need to
be attached by a qualified and experienced mechanic. For BMX bikes, you need to contact a qualified mechanic to ensure that
the pegs are correctly installed.

12. LUBRICATION

It's important to lubricate bike components to keep your bike running well, to maximize its lifespan and avoid component corrosion.
Use a special transmission oil for drive train parts. You're advised to use a special oil for the chain. After washing: dry, oil drive train components (derailleur, lever), suspension, brake
levers, brake caliper axles as well as the chain. To ensure proper sealing, oil the seat post and headset thoroughly.
Warning: Lubrication of bike components - apart from the chain - should be carried out by a qualified and experienced mechanic during regular servicing.

13. ADJUSTING CHAIN TENSION

If the bike has a derailleur, the chain will automatically be stretched. If you have a single gear bike or a bike equipped with integrated hub gears, it's important to check the chain tension
periodically (slack in the chain can cause the chain to derail, leading to a fall; a chain that is too tight can adversely affect the bike's performance).
To ensure the chain runs smoothly, there must be a vertical travel of 1 cm, measured at
the half way point between the cog and the pedal. Chain tension and adjustment for all
other gear systems should be carried out in accordance with component manufacturer's
instructions which can be found on www.btwin.com

14. ADJUSTING GEARS AND GEAR USE

To adjust gears, refer to the component manufacturer's instructions which can be found on www.btwin.com.The gears must be adjusted as follows:
This is a tricky procedure so you are advised to contact one of our qualified technicians.
Note: Problems with changing gear are often linked to the derailleur cable tension; you are less likely to
have to adjust the derailleur movement.
1 - Adjusting rear derailleur movement
To prevent the chain slipping off the cogs (falling into the wheel spokes or between the rear dropout and
cogs), you need to adjust the derailleur movement, using H and L stop screws:
Use screw H to adjust the lower stop (small cog side): undoing this screw moves the chain outward towards
the small cog.
Use screw L to adjust the upper stop (large cog side): undoing this screw moves the chain outward towards
the large cog.
2 - Adjusting front derailleur movement
Adjusting inner stop
By turning the outer screw of the derailleur
in direction A, the derailleur will move
towards the smallest chain ring; by turning
it in direction B, it will move away from
the large chain ring. Then adjust so that
the clearance between the chain guide
inner plate and the chain is between 0
and 0.5 mm.
3- Adjusting derailleur tension
Adjusting the cable tension creates a link between a position on the gear lever and a position in the gear system. Unscrew or tighten the cable tension screw at the lever or at the rear of
the derailleur so that each lever position corresponds to a cog:
If the chain does not move down every time you shift the lever: • loosen the cable by turning the cable tension adjusting screw clockwise.
If the chain does not move up every time you shift the lever: • tighten the cable by turning the cable tension adjusting screw anticlockwise.
The procedure for changing gears is as follows:
ADJUSTING INNER STOP SCREW
Chain guide inner
plate
Chain
1cm
Derailleur stop
Cable fixing bolt washer
Cable fixing bolt
Adjusting outer stop
By turning the inner screw of the de-
railleur in direction A, the derailleur
will move away from the smallest
chain ring; by turning it in direction
B, it will move towards the large
chain ring. Then adjust so that the
clearance between the chain guide
outer plate and the chain is between
0 and 0.5 mm.
9
Cable fixing bolt
Stop screw H
Stop screw L
ADJUSTING OUTER STOP SCREW
Chain guide outer
plate
Chain