Detailed MaintenanceDetailed Maintenance
Troubleshoot
5
92
Troubleshoot
5
93
5 5
Problem Possible Cause Remedy
Gear shifts not working properly - Derailleur cables sticking/stretched/
damaged
- Lubricate/tighten/replace cables
- Front or rear derailleur not adjusted
properly
- Adjust derailleurs
- Indexed shifting not adjusted properly - Adjust indexing
Slipping chain - Excessively worn/chipped chainring or
freewheel sprocket teeth
- Replace chainring, sprockets and
chain
- Chain worn/stretched - Replace chain
- Stiff link in chain - Lubricate or replace link
- Non compatible chain/chainring/
freewheel
- Seek advice at a bicycle shop
Chain jumping off freewheel sprocket or
chainring
- Chainring out of true - Re-true if possible, or replace
- Chainring loose - Tighten mounting bolts
- Chainrign teeth bent or broken - Repair or replace chainring/set
- Rear or front derailleur side-to-side
travel out of adjustment
- Adjust derailleur travel
Contatnt clicking noises when pedaling - Stiff chain link - Lubricate chain/Ajdust chain link
- Loose pedal axle/bearings - Adjust bearings/axle nut
- Bent bottom bracket or pedal axle - Replace bottom bracket axle or pedals
- Loose crankset - Trighten crank bolts
Grinding noice when pedaling - Pedal bearings too tight - Adjust bearings
- Bottom bracket too tight - Adjust bearings
- Chain fouling derailleurs - Adjust chain line
- Derailleur jockey wheels dirty/bindings - Clean and lubricate jockey wheels
Problem Possible Cause Remedy
Freewheel does not rotate - Freewheel internal pawl pins are
jammed
- Lubricate. If problem persists, replace
freehweel
Brakes not working effectively - Brake blocks worn down - Replace brake blocks
- Brake blocks/rim greasy, wet or dirty - Clean blocks and rim
- Brake cables are binding/stretched/
damaged
- Clean/adjust/replace cables
- Brake levers are binding - Adjust brake levers
- Brakes out of adjustment - Center brakes
When applying the brakes they squeal/
squeak
- Brake blocks worn down - Replace blocks
- Brake block toe-in incorrect - Correct block toe-in
- Brake blocks/rim dirty or wet - Clean blocks and rim
- Brake arms loose - Tighten mounting bolts
Knocking or shudderin when applying
brakes
- Bulge in the rim or rim out of true - True wheel or take to a bike shop for
repair
- Brake mounting bolts loose - Tighten bolts
- Brakes out of adjustment - Center brakes and/or adjust brake
block toe-in
- Fork loose in head tube - Tighten headset
Wobbling wheel - Axle broken - Replace axle
- Wheel out of true - True Wheel
- Hub comes loose - Adjust hub bearings
- Headset binding - Adjust headset
- Hub bearings collapsed - Replace bearings
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