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| TROUBLESHOOTING |
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| Problem |
| Possible Reason |
| Possible Solution |
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| Slipping chain |
| Excessively worn or chipped |
| Replace chainring/sprockets/ |
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| chainring or freewheel |
| chain |
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| sprocket teeth |
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| Chain worn/stretched |
| Replace chain |
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| Stiff link in chain |
| Oil or replace link |
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| Non compatible chain/ |
| Consult a professional |
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| chainring/freewheel |
| bicycle mechanic |
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| Brake not working correctly |
| Brake blocks worn down |
| Replace brake blocks |
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| Brake blocks/rim greasy, wet |
| Clean blocks and rim |
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| or dirty |
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| Brake cables are binding/ |
| Clean/adjust/replace cables |
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| stretched/damaged |
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| Brake levers are binding |
| Alter brake levers |
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| Brakes out of adjustment |
| Centre brakes |
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| Frequent punctures |
| Inner tube old or faulty |
| Replace inner tube |
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| Tyre tread/casing worn |
| Replace tyre |
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| Tyre incompatible to rim |
| Replace with correct tyre |
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| Tyre not checked after |
| Remove any sharp objects |
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| previous puncture |
| from tyre |
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| Tyre pressure too low |
| Inflate tyre to correct |
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| pressure |
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| Spoke protruding into rim |
| File down spoke |
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| When the brakes are applied |
| Brake blocks worn |
| Replace brake blocks |
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| they squeal/squeak |
| Brake blocks/rim greasy, wet |
| Clean blocks and rim |
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| or dirty |
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| Brake block |
| Correct block |
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| Brake arms loose |
| Secure mounting bolts |
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| Wobbling wheel |
| Axle broken |
| Replace axle |
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| Wheel out of true |
| True wheel |
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| Hub cones loose |
| Tighten hub bearings |
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| Headset bindings |
| Alter headset |
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| Hub bearings collapsed |
| Replace bearings |
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| Knocking or shuddering |
| Bulge in the rim or rim out |
| True wheel or consult a bike |
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| when brakes applied |
| of true |
| mechanic |
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| Brake mounting bolts loose |
| Secure bolts |
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| Brakes out of adjustment |
| Centre brakes and/or adjust |
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| brake block |
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| Forks loose in head tube |
| Secure headset |
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| Constant clicking noises |
| Stiff chain link |
| Oil chain |
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| when pedalling |
| Loose pedal axle/bearings |
| Alter bearings/axle nut |
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| Loose bottom bracket/ |
| Alter bottom bracket |
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| bearings |
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| Bent bottom bracket or pedal |
| Replace bottom bracket or |
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| axle |
| pedals |
66 |
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| Loose crankset |
| Tighten crank bolts | |
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RAOM0507 | Apollo Bicycle Company Pty. Ltd. ABN: 60 001 914 469 | Updated 23/05/07 |
