2009 si sl vs 2014 si cannondale crank

Discuss light weight issues concerning road bikes & parts.
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Joined: Fri Sep 05, 2008 1:15 am
Location: Los Angeles

by are

I have 2009-vintage Cannondale SI SL crank. I'm thinking of a new bike that comes with the brand new forged SI crank. I assume, but don't know, that the hierarchy of Cannondale cranks are SISL2 > SI SL > new SI. Is this right?

I've read that there are differences in axle length for the new cranks - (109 vs 104)? Does this matter?

My idea, assuming the SI SL crank has the "better" crank arms - lighter, stiffer - is to just move the cranks arms from my old bike to the new one. Is this reasonable/possible?


by Weenie

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