Bike Forums - View Single Post - Bio-Pace and the Trash Can...

06-17-11 | 01:55 PM

#67

jonwvara

Senior Member

Joined: Apr 2006

Posts: 4,017

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From: Washington County, Vermont, USA

Bikes: 1966 Dawes Double Blue, 1976 Raleigh Gran Sport, 1975 Raleigh Sprite 27, 1980 Univega Viva Sport, 1971 Gitane Tour de France, 1984 Lotus Classique, 1976 Motobecane Grand Record

Quote:

Originally Posted by stronglight

I imagine it would be fun to watch someone use a Bio-Pace ring for a fixed gear bike. The chain would continually go from super slack to tight again.

It surely must look like a bike with a major manufacturing defect is being ridden... or a circus bike.

If anyone finds such a video online please do post a web page url.

I've used a 42-tooth Biopace ring with a singlespeed--I image that a fixed gear would be the same. You'd hardly believe it, but the change in chain tension is completely insignificant. It's a non-issue.
JV

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