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What size wrench ought I buy to use the BPT-1 Bafang bb installation tool?

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    What size wrench ought I buy to use the BPT-1 Bafang bb installation tool?

    It doesnt have a socket only wrench flats, what size wrench do you use, and would a crescent wrench work? Thank you.

    #2
    Hi - are you trying to tighten down the inner and outer lock rings? If so, there's a (dammit, out of stock) socket set, here, and (in stock) Luna mfg-ed set here. I think the BPT-1 is used to pull the axle, for which there is this tool.
    BBSHD/BBS02B builds: 1 2 3 4 5 6

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      #3
      Thanks for the links, nice tools, the BPT-1 tool does fit onto the inner lock ring and I’ve bought that one now. On another thread I read someone mention using a 12-15” crescent wrench, I just need to take it to the hardware store and try a bunch of them until I find the right one.
      https://california-ebike.com/shop/ba...bb-tool-bpt-1/. I was wondering what the smaller end did, looks the same shape as the axle remover but has only two lugs?
      Last edited by Dewey; 03-15-2019, 01:50 PM.

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        #4
        Yep, that's what smaller end does - see this video:
        BBSHD/BBS02B builds: 1 2 3 4 5 6

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