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Replacing jockey wheels

Old 10-08-06, 05:14 PM
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mxwalker
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Replacing jockey wheels

I know that when I replace my chain I should also replace my cluster but how often do jockey wheels need to be replaced ?
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Old 10-08-06, 06:16 PM
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Pretty much never! They're plastic and thus much softer than the chain, so they won't contribute to wearing it out. If the jockey wheels can keep the chain in a straight line and shifting smoothly, then they're fine.

If they get too dirty and noisy, you can take apart the derailler cage, clean the bushings that the jockey wheels spin on, and repack them with grease. That will make them spin freely and quietly!

Also, you don't need to replace your cassette/freewheel with every chain replacement If you never let twelve chain links get longer than about 12-1/6", your cassette will last somewhere around 2-5 chains. You'll know the cassette needs replacement when a new chain starts to slip on the cogs. I hope that should save you some money Also read Sheldon Brown's article on chain/sprocket wear: www.sheldonbrown.com/chains.html#wear
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Old 10-08-06, 06:18 PM
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Thanks moxfyre !
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Old 10-09-06, 04:01 PM
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Top jockey wheels can get very worn and the teeth become pointed. Spares are easy to get but you must get the correct one for your mech.
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Old 10-09-06, 04:08 PM
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Also, if you take the derailer cage apart make sure you don't switch the jockey and pulley wheels when putting it back together.
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Old 10-09-06, 08:22 PM
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besides the above if you can make them wobble side to side
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