Technical & Reference Section > Tech and Restoration

28tpi bottom brackets

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kalex:

--- Quote from: steve69 on February 12, 2017, 09:24 AM ---
--- Quote from: kalex on February 12, 2017, 08:40 AM ---Not sure if I'm on the same wavelength but I'm sure I've used a mongoose 28tpi opc bb on redline 401's double dimple spindle

--- End quote ---

Yes, the 401 bb is a regular 1pc bb. The Tange CV-170 that's spoken of I'm sure is a much narrower square drive unit

--- End quote ---

I did say I wasn't sure I was on the same wavelength  :D

steve69:
I just dropped a quick search to make sure I wasn't talking out of my backend. It would seem you need a 24tpi (not 28) but it does look smaller as I suggested.

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