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BTwin 2013 Manual

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9
The procedure for changing gears is as follows:
Changing gear: continue to pedal but not too hard and move the gear shifter (lever or rotating handle) until the chain is positioned
on the selected chain ring or cog.
Each lever position corresponds to a dierent cog.
• If the chain has a tendency to slip o the cog: you can try "overshifting" by gently pushing the lever slightly beyond current
position without moving to the next position.
=> If this still doesn't work: you will need to adjust the cable tension.
• If the chain does not move down easily, refer to chapter on "adjusting the gear system." The chain should move smoothly
between cogs.
Warning:
To ensure that the gear system function scorrectly and to
extend service life of drive train parts (chain, free wheel,
pedals):
• Avoid sudden, aggressive gear changes.
• Avoid crossing the chain (using large cog and large chain
ring or small cog and small chain ring).
• If the chain is crossed (diagram 2) it may be in contact
with the front derailleur.
Warning: To ensure optimal use of the manual or automatic gear
change system, you are advised to avoid changing gears during
periods of intense pedaling and to shift to a lower gear before
stopping so it's easier to start o again.
O. Adjusting brakesand recommendations for replacing friction
brake components
The brake lever must not come into contact with the handlebar.
Avoid creating short, sharp bends in the outer casing to ensure the cables can run smoothly.
Damaged, frayed or rusty cables must be replaced immediately.
The brake pads must be aligned with the edge of the rim (at a distance of 1-3 mm). They must never touch the wheels.
Disc brakes must be checked regularly; check all the brake screws and check brake pads for signs of wear; the minimum thickness
should be 1 mm.
Brakes must be adjusted as outlined in section "Preparing for use." You are advised to get a qualied mechanic to carry out these
adjustments.
When replacing brake parts, to ensure the continued performance of your bike, you are advised to use genuine spare parts. This
procedure must be carried out by a qualied mechanic.
P. General maintenance recommendations
Your bike needs a minimum amount of maintenance and regular check-ups, depending on how much you use it: regularly oil
the chain, brush cogs and chain rings, occasionally apply a couple of drops of oil to the outer casing of the brake cables and the
derailleur, and remove any dust from brake pads.
Regularly check the tyres for excess wear, cuts, slashes or toe wear and replace the tyre if necessary. Check the rims for signs of
excessive wear, dings, dents and cracks.
Your bike should be serviced regularly by a qualied mechanic.
Q. Importance of using genuine spare parts.
When you replace components, you must use genuine spare parts to ensure good
performance and reliability. This procedure must be carried out by a qualied mechanic.
Warning! When replacing the pedals, wheels, mud guard or crank, the minimum
distance between the edge of the wheel or mud guard and the pedal axle must exceed
the measurements given below.
Minimum Distance D
D>89 mm for road bikes and children's bikes
D>100 mm for mountain bikes and city bikes and trekking
STOP
Chain ring
Cog
… 9 …


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