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Old 07-17-09, 11:41 PM   #1
goggles
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Old Trials Bike Question

Hello,

I am getting an old Ibis trials comp from the eighties. Currently it has a Sugino trials crankset, with a 24t chainring. I had a few questions for people regarding the cranks, compatibility and chainline:

Can the chainwheel be swapped? Is it replaceable with a non Sugino wheel, like modern BMX single bolt?

The frame has 110mm/3/8" spacing, like BMX. What is the standard chainline? What is probably the max chainring size that can be used without hitting the chainstays? If I wanted to throw an old 110/74 BCD crankset on instead, would the inner ring line up?


Thank!
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Old 07-19-09, 11:52 AM   #2
kenhill3
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Here's a bump for ya.

I can't personally help you at all, but try also posting this question on the Bike Mechanics sub-forum.

Good luck.
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