Quote:
Originally Posted by thatprogrammer
Are larger spacers on the wheels required if going 15mm?
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Yeah. If you're using 15mm wide pulleys, you'll need roughly 1/4" more in spacers (6mm to be exact) for the wheel with an offset pulley. You may also need larger standoffs for the Vex 3-CIM Ballshifter. The other wheel should be fine.
You do need a lathe to make custom 30+mm wide pulleys if you don't want two 15mm ones, and you may need to modify the outer wheel shafts a bit (may not be enough room for the standard locking collar retension, haven't checked).