107
ELECTRIC BYCICLE COMPACT
EN
TROUBLESHOOTING
Problem Possible Cause Possible solution
Gear shifts not
working properly
• Derailleur cables sticking/
stretched/damaged
• Front or rear derailleur not
adjusted properly
• Indexed shifting not adjusted
properly
• Lubricate/tighten/replace cables
• Adjust derailleurs
• Adjust indexing
Slipping chain
• Excessively worn/chipped chain
ring or freewheel sprocket teeth
• Chain worn. stretched
• Stiff link in chain
• Non-compatible chain/chain ring/
freewheel
• Replace chain ring, sprockets and
chain
• Replace chain
• Lubricate or replace link
• Seek advice at a bicycle shop
Chain jumping off
freewheel sprocket
or chain ring
• Chain ring out of true
• Chain ring loose
• Chain ring teeth bent or broken
• Rear or front derailleur side-to-side
• Travel out of adjustment
• Re-true if possible, or replace
• Tighten mounting bolts
• Repair or replace chain ring/set
• Adjust derailleur travel
Constant clicking
noises
when pedalling
• Stiff chain link
• Loose pedal axle/bearings
• Loose bottom bracket axle/
bearings
• Bent bottom bracket or pedal axle
• Loose crank set
• Lubricate chain/Adjust chain link
• Adjust bearings/axle nut
• Adjust bottom bracket
• Replace bottom bracket axle or
pedals
• Tighten crank bolts
Grinding noise when
pedalling
• Pedal bearings too tight
• Bottom bracket bearings too tight
• Chain fouling derailleurs
• Derailleur jockey wheels dirt/
binding
• Adjust bearings
• Adjust bearings
• Adjust chain line
• Clean and lubricate jockey wheels
Freewheel does not
rotate
• Freewheel internal pawl pins are
jammed
• Lubricate. If problem persists,
replace freewheel
Brakes not working
effectively
• Brake blocks worn down
• Brake blocks/rim greasy, wet or
dirty
• Brake cables are binding/
stretched/damaged
• Brakes levers are binding
• Brakes out of adjustment
• Replace brake blocks
• Clean blocks an rim
• Clean/adjust/replace cables
• Adjust brake levers
• Centre brakes
To Next Page
Loading...