The AI Biker

BIKE AND KIT

Trailside repairs

Deal with common punctures, chain problems and loose components—and recognise when the ride should end.

Reviewed · General UK planning guidance · Check current operator and manufacturer information

Carry the essentials

Match tools and spares to the bike rather than relying on a generic kit.

  • Tube or tubeless plugs, pump, tyre lever and a boot for a damaged tyre casing.
  • Multi-tool with the required keys, chain tool, compatible quick link and small cable ties.
  • For remote rides add a spare hanger if replaceable, brake-pad spacer and basic first-aid supplies.

Common fixes

Move completely off the trail before stopping.

  • For a puncture, find and remove the cause before fitting a tube.
  • Remove a damaged chain link with a chain tool and fit the correct reusable or single-use quick link.
  • A rubbing brake may follow a loose axle; secure the wheel before attempting calliper adjustment.

Stop riding when

Some faults make continued riding unsafe.

  • A frame, fork, handlebar, stem, crank or wheel is cracked or seriously bent.
  • Either brake cannot stop the bike reliably or fluid is leaking.
  • A repair interferes with steering, wheel retention or suspension movement.

Useful official guidance

Rules, conditions and services change. Use these sources and the relevant venue’s current information before relying on a plan.

Cycling UK maintenance advice

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