Video workshop: How to fix a bent disc brake rotor

Part 5 of our MTB maintenance series

Bending a disc brake rotor is easily done. Whether you crash, clip a tree stump or simply load your car badly, it can be knocked out of shape. But how can it be fixed?

In part five of our mountain bike maintenance series, senior technical editor Rob Weaver demonstrates the skills and tools you need to straighten out any kinks. A major bend will put it out of commission for good, but any slight knocks can be easily fixed with a bit of trial and error tweaking.

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Whether you're in the comfort of a workshop or exposed out on the trails, having the right skills and tools to fix and maintain your bike are an essential part of any mountain biker's armoury.

Our new 10-part series with Unior Tools aims to instil the knowledge that'll mean you won't be caught short when a problem arises. From workshop tips such as how to adjust a rear derailleur, setting up front and rear suspension or fixing a broken chain to trail tips like dealing with a broken spoke or replacing a gear cable, the series – online every Monday for the next couple of months – will cover skills both basic and expert.

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