Bike Forums - View Single Post - How to "reset" crankset on English 3-speed

10-13-11 | 06:27 AM

#14

rhm

multimodal commuter

Joined: Nov 2006

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Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...

Quote:

Originally Posted by woodrupjoe

Quote:

Originally Posted by woodrupjoe

Is it possible that an adjustable non-drive-side cup has been installed instead of the proper fixed cup? That's the only thing I can think of to make sense of the "cup continuing to thread in" line. The shoulder of the fixed cup should be tightened against the bottom bracket. Curious.

I'm standing by my earlier prediction.

The problem with this theory is that the drive side cup ("fixed cup") has a left hand thread. So this is possible only if they screwed up at the factory and put a right handed thread through both sides of the BB shell. What are the odds of that? Huh, anyone's guess.

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