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Bbshd will not go into the bb past the threads

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    Bbshd will not go into the bb past the threads

    Didn't expect that... Now what? File of the bottom bracket threads?

    #2
    There maybe small burrs where the frame tubes meet BB. I had to file mine. Just don't force it in because it may not come out.

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      #3
      Didn't see that but I will look again.
      Really looks like the threads on the bbshd and the bb threads don't have enough clearance
      Last edited by Forgiven; 05-13-2017, 01:49 PM.

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        #4
        When I put mine together it would only go half in so I put a drop of oil on the shaft and spread it around and then twisted the bbshd as I pushed it in and it slide right in. You should also check to see if there is a paint run on it stoping it from sliding in.

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          #5
          The LBS has a bottom bracket threading tool: https://www.amazon.com/Park-Tool-Bottom-Bracket-Facing/dp/B000C12AF0 which will make the threads perfect and can reduce the width of your BB. The LBS won't too charge much for this service. I had it done on one side when I bent my BB on a bare frame; it was a miracle cure! The tool in the photo costs $541! I am currently saving up for one.
          Click image for larger version

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          Last edited by commuter ebikes; 05-13-2017, 04:51 PM.

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            #6
            Look for the simplest explanation first. There's probably a shift-cable guide bolted to the bottom of the shell, and that little bolt is blocking the BBSHD from screwing all the way in.

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              #7
              I had to sand down my BB shell with some sandpaper, as well as slowly push and twist my BBSHD through the shell. It eventually went in.

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                #8
                There was one of the downtubes with a weld that protruded just enough to catch on the threads on the other side.
                Thanks for all the help and suggestions

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