Biketec AG Flyer Operating Manual page 57

The following is an example of how to fine
tune a 10x Shimano XT rear derailleur. The
setup or process for a different rear derail-
leur is identical.
Fine tuning the rear derailleur:
Apply the gear shift lever once to switch the
chain from the smallest to the second sprock-
et. Then push the gear lever until you feel
some resistance and then turn the cranks.
Adjustment screw
If the chain
jumps onto
the third
sprocket
• Turn the adjustment screw on the gear le-
ver to the right (clockwise) until the chain
jumps back onto the second sprocket.
Adjustment screw
If there are
no noises
• Loosen the adjustment screw so far to the
left (anti-clockwise) until the chain is graz-
ing the third sprocket.
Fine tuning the shifting process:
When you feel resistance when
pressing the gear lever, the chain
should graze the third sprocket
and cause a noise.
If the chain grazes the third
sprocket, the adjusting screw has
to be turned to the right slightly until the graz-
ing sound is no longer perceived.
To ensure smooth gear shifts, all force-bear-
ing parts have to be greased.
Chain rings
Sprockets
Source: Shimano
Cleaning and caring for your chain gear system:
• Sprockets and chain rings should be cleaned
with neutral fluid at regular intervals.
• The rear derailleur should be cleaned at
regular intervals and all moving parts, such
as the rollers, greased.
• The chain should not be cleaned with
grease-removing cleaning fluid. For in-
stance, a rust-removal fluid can wash the
grease out of the chain. This could result
in problems operating the bike or prema-
ture wear.
Transporting a FLYER with chain gears:
If you want to transport your FLYER by car or
train, please ensure that the rear derailleur
is not subject to any pressure. Any pressure
could bend the attachment of the rear derail-
leur to the frame and lead to incorrect func-
tionality. This can result in serious accidents if
the chain and the rear derailleur contact with
the spokes of the rear wheel.
If you remove the rear wheel for transport,
please ensure that the FLYER is lying on its left
side if possible, and that there is no pressure on
the rear derailleur (which should be facing up).
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