Eccentric bottom brackets
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09-05-22, 01:10 PM
#3
Senior Member
Single speeds.
09-05-22, 03:07 PM
#5
Clark W. Griswold
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Eccentric bottom brackets are great for frames when you need to tension a chain and don't have track ends or semi horizontal dropouts or sliding dropouts or something like that. Single speeds or fixed gears on a more modern road frame with vertical dropouts or maybe adding a Rohloff hub to a touring bike or something like that. Also super handy on Tandems to tension the timing chain (or belt). Loads of usefulness to an eccentric BB but if you can get a frame with adjustable dropouts you will be in better shape overall at least for single bikes.
09-07-22, 06:46 AM
#8
Old fart
Join Date: Nov 2004
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Yes. And there are also eccentric hubs, to accomplish the same thing.
https://wheelbuilder.com/white-indus...-eno-rear-hub/
https://wheelbuilder.com/white-indus...-eno-rear-hub/
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09-07-22, 07:35 PM
#9
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Join Date: Apr 2010
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But an eccentric BB shell is a problem. My son bought an expensive bike and the BB kept coming loose. The mfg rep was amazed that I found this problem an gave my son a whole new frame.
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