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Cup/cone to square taper BB.

Eddy32Eddy32 Posts: 18
edited July 2016 in MTB workshop & tech
Might be a simple question but,

If a cup and cone spindle measures 120mm, is there/it possible to use a 118mm BB with spacers 1mm on each side?
Someone with the same bike said "122.5mm was to big".

It's a cheap bike and uses a 120mm cup/cone BB, and a "prowheel jazz" crankset, the crankset is bent and the bearings are clicking/crunching while peadling.

I would like to replace it with a shimano un55 63x118mm BB?/ Shimano Acera M361 crankset.

Is this possible/ any ideas?

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