How & When To Replace Your Derailleur Jockey Wheels

Описание: The jockey or pulley wheels on your bike do the job of both moving the chain across the cassette as well as keeping the chain tensioned. In the process, they turn thousands of times and get pretty gunked up and do wear out. Jon talks you through how and when to replace them.

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What are you going to need? Firstly, some replacement pulley wheels. These do come in different sizes, so the number of teeth on them, and this is important as they need to be fit inside the cage of the derailleur as well as having the chain wrap around it too. I’ve tried using pulley wheels with more teeth, and they haven’t always worked well, if at all. Then of course you can have options with ceramic bearings that spin freely compared to standard bearings.

Lets look at when they need replacing, if the teeth are very sharp or in the worst case, worn away. Then it is time for new ones. Or some have sealed bearings and whilst they can be temporarily revamped, it is a smarter option to replace the complete units, as after all they do need replacing.

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Music: Epidemic Sound
Take Away - Camelian Glade

Photos: © Velo Collection (TDW) / Getty Images & © Bettiniphoto / http://www.bettiniphoto.net/

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