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Punctures

Punctures are inevitable. The pressure inside the tyre is higher than the pressure outside, and the ...

Refitting a new tube

It’s vital to work out what caused the puncture before you fit a new tube. If the problem’s still th...

Crank and pedal repairs

It’s easy to forget about the parts that connect you directly to the bike but every time you grind a...

Mending a broken chain

The combination of angle and stress is too much for the fragile, put-upon chain and it gives way, le...

Twisted links

Twisted links are usually victims of clumsy gear shifts, although they may be caused by trailside ob...