Problem |
| Possible Reason |
| Possible Solution |
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Grinding noise when |
| Pedal bearings too tight |
| Adjust bearings |
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pedalling |
| Bottom bracket bearings too |
| Adjust bearings |
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| tight |
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| Chain fouling derailleurs |
| Adjust chain line |
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| Derailleur jockey wheels |
| Clean and oil jockey wheels |
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| dirty/binding |
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Chain jumping off |
| Chainring out of true |
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chainwheel sprocket |
| Chainring loose |
| Secure mounting bolts |
|
|
or chainring |
| Chainring teeth bent or |
| Repair or replace chainring/ |
|
|
|
| broken |
| set |
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| Rear to front derailleur |
| Alter derailleur travel |
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| |
|
| adjustment |
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Freewheel does not |
| Freewheel internal pawl pins |
| Lubricate. If problem |
|
|
freewheel |
| are jammed |
| persists, replace freewheel |
|
|
Incorrect gear shifting |
| Derailleur cables sticking/ |
| Lubricate/tighten/replace |
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| stretched/damaged |
| cables |
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|
| Front or rear derailleur not |
| Alter derailleurs |
|
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| adjusted properly |
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| Indexed shifting not adjusted |
| Alter indexing |
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| properly |
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Steering not accurate |
| Wheels not aligned in frame |
| Align wheels correctly |
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| Headset loose or binding |
| Adjust/secure headset |
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| Front forks or frame bent |
| Consult bicycle mechanic for |
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| frame realignment |
|
|
Knocking from rear end of |
| Broken suspension mount |
| repair/replace frame |
|
|
suspension model |
| Worn suspension bushing |
| Replace worn components |
|
|
Suspension dampers binding |
| Loss of internal fluid |
| Lubricate as necessary |
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| Internal rust |
| Disassemble damper and |
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| replace affected parts |
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| Damaged internal parts |
| Consult professional bicycle |
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| mechanic |
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67
Updated 23/05/07 | RAOM0507 | Apollo Bicycle Company Pty. Ltd. ABN: 60 001 914 469 |
