Originally Posted by
ZMC888
So it's almost exactly like a conventional threaded BB with external bearings but instead of threading to the frame it threads to itself, on the bike it looks just like a threaded BB? Doesn't sound too bad.
It looks just like any other PF30, except the cup has notches on the exterior. The bearings of course are still inside the shell. For installation you press in the DS cup, then insert the NDS cup and thread it into the DS. The threads are pretty fine. Final torquing is sort of like installing an old fixed cup side of a square taper BB, in that you have to be kind of exact about getting the wrench squarely onto the cup.
scott s.
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