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How to Fix a Bicycle That Makes Noise When Going Over Bumps

A bicycle that rattles, knocks, or creaks when riding over bumps may have a loose accessory, worn component, or suspension problem. Identifying the source is important because some noises indicate a safety issue.

Check the Simple Causes First

Inspect the bottle cage, mudguards, rack, bell, and other accessories. Loose bolts can cause rattling on uneven surfaces.

Check that the wheels are correctly installed and that the handlebars, stem, and saddle are secure. Do not tighten components beyond the manufacturer's specified torque.

Inspect the Suspension

On a suspension bicycle, listen for unusual knocking or grinding from the fork or rear shock. Damaged seals, worn bushings, or loose mounting hardware may require servicing.

If you hear a strong knock from the frame, fork, steering assembly, or suspension, stop riding until the problem is identified.

How to Prevent the Noise

Perform regular inspections, keep accessories secure, and service suspension components according to their maintenance schedules.

Conclusion: Not every rattle is serious, but persistent knocking should never be ignored. A systematic inspection helps distinguish a loose accessory from a potentially dangerous mechanical fault.

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