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Triple crank help

Old 07-22-07, 05:22 AM
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cs1
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Triple crank help

I'm looking to swap out my Campy triple crank for Sugino XD600 triple. The Sugino has a 48 big ring which is much better for what I am planning. So, here goes: because the Sugino is designed to work properly with a Shimano chainline, what length BB would I need to make it work with a Campy? For those that say it doesn't matter it does. The spindle length is designed to work in unison with a certain crankset and ft der arc. Changing one part of the formula can effect performance. Thanks in advance.

Tim
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Old 07-22-07, 06:31 AM
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I'm going to say that I don't think it matters.

The chain line is determined by the location of the smallest cassette cog. Whether Campy or Shimano you'd like to center the crankset relative to the cassette. The Sugino XD600 crank recommends a spindle length of weither 113mm or 118mm. You should pick the 113mm spindle if you have 130mm dropouts and 118mm if you have 135mm dropouts.
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Old 07-23-07, 03:21 AM
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Originally Posted by Retro Grouch View Post
I'm going to say that I don't think it matters.

The chain line is determined by the location of the smallest cassette cog. Whether Campy or Shimano you'd like to center the crankset relative to the cassette. The Sugino XD600 crank recommends a spindle length of weither 113mm or 118mm. You should pick the 113mm spindle if you have 130mm dropouts and 118mm if you have 135mm dropouts.

Thanks for the reply Retro. Somewhere Sheldon Brown chimed in on the subject. If memory serves me it was the crankset, ft der and BB spindle length that were designed to work in unison. You are correct about the rear though.

Tim
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