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Question:

what bottom bracket size do i need?

i recently bought the primo powerbite cranks and i needed to buy new brackets, seeing as the cranks cant use unsealed bearings, and my lbs, jts, said i needed american sealed 22 mm. i bought the bearings but they wont fit? i have an eastern nitrous piston frame

Answer:

I understand your frustration. I think you need to ask eastern. It may be that that bike can't take standard components. It may not be intended for the primo.
bottom brackets are notoriously hard to get the right part for you didn;t tell us enough to help if you got them at the lbs a. why can;t you take them back? because b. they told you to get them c. that is the function of the lbs, to get you the right thing. wle

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