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Emyr-
That could work. The chainring already has small recesses for the chainring bolts on one side. If I could have these widened to accept the spider I think I'll be good.
It's a Gebhardt GXP Chainring.Edit: Or I could just get another crankset without chainring that has a proper chainline. Anyone know of a GXP/Hollowtech Crankset with 130mm BCD and 165mm length that has a proper 42mm chainline? I know of the Shimano Alfine crankset, but sadly it's not availible in 165mm
Murphy's_Law
I'm looking for a way to change the chainline on cranks for GXP bottom brackets.
More specific: I bought a Sram S300 crankset. It has a 41mm chainline. Since the chainring mounts on the inside and I am adding a thicker chainring I expect the chainline to drop to somewhere around 40mm.
I'd like to push that 1.5 mm outwards to get back into a more acceptable region.
I know you can shim the BB to affect the chainline, but I thought that was only possible for 73mm wide GXP BBs on 68mm wide BB-shells.
So how does this work?