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Thanks for that, I never would have thought of it not being British threads.
I guess I'll get it down to a bike shop to get the threads cleaned up anyway, and hopefully they have an italian BB I can try out.
I have a Sugino Messenger crankset that I had planned on using, but I might have an issue with finding a JIS bb with Italian threading? I've never ventured into the world of Italian standards, so don't know if they're compatible with Japanese/British standards at all.
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I haven't got a set of callipers, but measured the shell as 69mm wide x 37mm diameter.
The frame is a Davanti, which as far as I know is a generic alloy frame branded by a bike shop here in Holland.
The bb says BB-7420, BC1.37x24T, 68. It's sold as "FSA RPM JIS Square Taper Bottom Bracket BB-7420AL BSA-68-ST"
I've added a photo of the threads as well.
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Building up a NOS track frame and went to put the bb in and found the the driveside threading seems to be too shallow. The non-ds threading fine, and the bb threads in smoothly, but on the other side I can push the bb in and pull it out with turning it at all.
Is chasing the bb shell going to help this at all? Or is this a more terminal problem?
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I know it's a recurring request, but figured I would ask anyway.
Looking for something along the lines of the Specialized AWOL, All-city spacehorse, Brother Kepler.
Usually ride a 57, so something in that ballpark would be ideal.
Let me know what you've got.
Cheers,