Officially Foul Mouthed
Join Date: Aug 2008
Bikes: Ti IF PlanetX, etc.
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well....the mtb crankset option is out because the chainline is 50mm and 45mm is more appropriate; last night i built up the bike to test ride capability (using 105 hollowtech, 175mm, 50/34) and even though there is only a flat screwdriver blade sliver of clearance between the left crankarm and chainstay there was no touching when i pedaled hard; i did not do a 50/12 uphill sprint effort to torque the frame hard however, so testing at the limits was not performed
then i got the idea that i could grind and/or file away some material from the inside tip of the left crankarm to increase the clearance by a few mm; i don't think this will compromise the integrity of the crank and i accept that this will null any warranty on it;
another idea was to deform the left chainstay a bit but i decided to not try this just yet
i thought about using a 170mm crankset, but that would lift my costs and i really want 175s
the alternative is to scrap the frame - which only cost me usd110 - no big loss, but this bike is supposed to be cheap and serviceable for a CX4 rider, so scrapping is not good
if left arm tip grinding idea works then i'll replace the 50/34 rings with 46/36 (hmmm, maybe 46/34 or 44/34) ) and be ready for CX season
i'll take some before/after pics - unless someone scares me off of this latest idea
Last edited by mikerhymeswith; 03-26-09 at 08:33 AM.