Thread: Replacing bottom bracket
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Old 03-28-15 | 05:51 AM
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cyccommute
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Originally Posted by apbenton
I'm currently sprucing up an old bike I've had in the garage for a while. I thought it would be a good way to practice and improve my bike mechanic skills. The crank arms seem to wobble quite a bit and from a bit of research this seems to point to bottom bracket problems. I'm currently trying to remove the crankarms & bottom bracket but I'm not sure what tools I need. Would anybody be able to help and provide advice? I've attached photos to show the bike in question.

Thanks in advance!
You need a crank arm puller to remove the arm. For your bottom bracket, you need a thin wrench (32mm?) and a hook spanner to adjust the bearing cup. That can actually be done with the crank arm still in place. Go over to Park Tools and look at bicycle repair help/bottom brackets to see how it is done.
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