Operation Manual

98
15. Faults When Riding
WARNING
Danger from falls and accidents
Incorrectly performed troubleshooting can lead to dangerous riding situations, falls and accidents.
• You should only carry out work to your bike which you are permitted to perform according to the
following table.
Contact a specialist bicycle workshop if the work that you have carried out is not successful.
• Have all other work carried out by a specialist bicycle workshop.
• You should contact your specialist bicycle dealer immediately if the riding behaviour of your bike
does not appear to be normal, if you can hear unusual noises or if you notice any malfunctions
which are not listed in the following table.
15.1 Gear shift, drive
Malfunction Possible cause(s) Remedy
Gears do not change
or do not change
smoothly
Shift lever not actuated
correctly
Actuate the lever again
Shift mechanism malad-
justed
Contact your specialist bicycle dealer.
• In the case of steep
inclinations, excessive
pressure on the pedal
• and/or pedalling
movement too slow
Repeat the gear shifting procedure on fl at
terrain.
Changing gear while stationary:
• Lift the rear wheel.
• Turn the crank in the drive direction until
the desired gear is engaged.
Drive blocks during or
after gear shifting
Chain jamming Leave the bike where it is.
Actuate the gear lever in the opposite direc-
tion.
Lift the rear wheel; if the following is possible
without the use of force:
turn the crank against the drive direction.
NOTE:
Under no circumstances should you apply
force if the crank cannot be easily turned.
Contact your specialist bicycle workshop im-
mediately.
Unusual noise such as
cracking, loud grinding
and/or banging
Drive/gearing compo-
nents damaged
Contact your specialist bicycle dealer imme-
diately.
Irregular resistance
during the pedal
movements
Drive/gearing compo-
nents damaged