oldnslow wrote:I have a 2007 System Six and it came with the Carbon Si cranks.
I replaced them with Hollowgram SL cranks and everything works fine, both with the standard 104mm spindle and, later, the Cannondale SRM spindle. As mentioned above, the spindle is inserted from the NDS and the spacers are fitted on the drive side.
Should be no problem.
Ok I was at the shop and we had it on the stand and I see what they are saying. With the cracks on properly it looked like maybe an 1/8 inch between the crank arm and the frame clearance versus 1/4 with the carbon cranks. The shop said they looked too close to the frame and could possibly hit the frame if I was out of the saddle. They said maybe the arms are for a newer frame with mine being the 2007 not 2008 like I thought. Can somebody that has a system six 52 in frame with si or sl 175mm arms tell me what their clearance is?