Fitting and adjusting brake blocks

We find it easiest to work on one brake unit at a time, removing the old block then replacing it straight away with the new one. This way, you will keep the washers and eye bolt in the correct order. If you take both blocks off at once, the washers and eyebolt have a tendency to drop off one unit when you’re working on the other.

Hold the eye bolt still using a 5mm Allen key in the head of the eye bolt, and undo the nut at the back of the unit – usually with a 10mm spanner. You don’t need to take the nut off, just loosen it enough to pull the old brake block out of the hole in the eye bolt. Feed the stub of the new brake block back through the hole in the eye bolt so that the brake block faces the rim. Most brake blocks will fit either way around, but if there are any arrows printed on the block, point these forward. If one end of the brake block is shorter than the other, this goes at the front. Step 1: Tighten the nut just enough so that…

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Bike Maintenance Tips, Tricks & Techniques (Digital) - 1 Issue, Bike Maintenance Tips, Tricks & Techniques 3rd Edition

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