Problem Possible Cause Remedy
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
Brake levers are binding
Brakes out of adjustment
Replace brake blocks
Clean blocks and rim
Clean/adjust/replace cables
- Adjust brake levers
- Center brakes
When applying the brakes
they squeal/squeak
Brake blocks worn down
Brake block toe-in incorrect
Brake blocks/rim dirty or wet
Brake arms loose
Replace blocks
- Correct block toe-in
- Clean blocks and rim
- Tighten mounting bolts
Knocking or shuddering when
applying brakes
Bulge in the rim or rim out of true
Brake mounting bolts loose
Brakes out of adjustment
Fork loose in head tube
- True wheel or take to a bike shop
for repair
o Tighten bolts
- Center brakes and/or adjust brake
block toe-in
- Tighten headset
Wobbling wheel
Axle broken
Wheel out of true
Hub comes loose
Headset binding
Hub bearings collapsed
- Replace axle
- True wheel
- Adjust hub bearings
- Adjust headset
- Replace bearings
84
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