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