More Energy than Sense
Join Date: Aug 2005
Location: 155 miles north of Spokane
Bikes: Thorn Sherpa, Co-Motion Custom Road, Salsa Fargo, Mercian King of Mercia and Motobecane Fantom Pro 29er
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Sugino XD600 vs XD2 BB spindle length
I could really use some help with this. I am somewhere between a beginner and pro when it comes to working on bikes. I have assembled several bikes with no or little problem and have tuned mine and friends for the last 15 years.
I am buidling a Gunar Crosshairs for a friend and usually use a Sugino XD600 but they were on back order. I got a XD2 instead. Can anyone tell me if there is a difference?
I used a 113 spindle length on my touring bike which has the XD600 and it worked great. I was told to use the same for the XD2 but it placed the crank too far out. When it's in the middle ring and either first or second gear in the rear, it will down shift to the small chainring on it's own due to the chain angle. Realizing my touring bike has 135 rear spacing and the Crossahairs 130, I tried a 110 and then a 107 only with the same problem. What perplexed me even more was the distance between the carnk arms and the seat tube remained the same between the 113 and 107 while remaining equal distance on each side. Based on that, the 107 didn't bring the crank arm any closer. I am using an eight speed cassette and yes I was using proper torque and even a little more hoping to bring the drive side in.
Advice will be greatly appreciated.