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biopace cranks

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Old 07-26-06, 07:41 PM
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biopace cranks

are biopace rings still 130 bcd or do they fit a proprietary crank? i found a cheap old road bike with dura ace aero **** on it, but it has a biopace ring. just want to be sure before i buy it.
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Old 07-26-06, 07:53 PM
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My ma has a bike with 110 biopace. But it's really old so the new ones can be different.
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Old 07-26-06, 07:56 PM
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my biopace = 130. biopace rules for platform pedals on geared bikes.
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Old 07-26-06, 07:57 PM
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They made both 110 and 130. If it's a road bike, then it's almost certainly 130. I've seen some mtbs with 110 biopace, but that's it.
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Old 07-26-06, 08:01 PM
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the ones i recently replaced a chainring on were 130. that was on an 80s bianchi road frame.
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Old 07-26-06, 08:03 PM
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cool. thanks.

i just wanted to be sure i can put a traditional ring on them.
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