Operation Manual

Cycle Pinion gearbox
73
x If the gears no longer shift precisely after running in or after longer use, contact
your dealer.
8.3 Troubleshooting
A Pinion gearbox generally runs quietly with no disturbing noises. If any
noises are produced and the gears shift properly, then the noises have
another cause.
Troubleshooting when using a Pinion gearbox
Fault Possible cause Solution
With a belt drive
Grinding noises Belt Alter the belt tension
Belt tension varies in the
course of a revolution
Front pulley is not centred,
chainring bolts do not hold the
front pulley central
Use chainring bolts with
an external diameter of
10mm/0.4"
With a belt drive and with a chain drive
Creaking noises Pedals, saddle, handlebars Check all components or have
them checked by the dealer
Cracking noises Drive components with loose
screw joints
Check the screw joints of
drive components and have
the dealer tighten them with a
torque wrench if necessary
Clicking in 7th and 13th gear Both gear levels have a
freewheel pawl (models
manufactured before 2014)
Noise is not a defect.
Chargeable upgrade to new
version of the gearbox on
request
Humming or buzzing Crossed chain or belt Straighten the chain or belt
Gears do not shift smoothly Worn or incorrect shift cables,
outer casings or end caps
Only use shift cables with
a maximum diameter of
1.2mm/0.05"; only use shift
cable outer casings; only use
plastic end caps; be sure to
replace worn shift cables
Slippage when pedalling Freewheel pawl does not
engage correctly
Further pedalling will engage
the gear with the next tooth