How do I take apart my XTR wheels? Is there a PDF or video guide out there? I'm trying to mount Avid rotors using the XTR 6-bolt adapters. The axle is too big to get the splined tool in to tighten the rotor without pulling the axle first. Looks like I need a thin wrench to loosen the lock bolt, but I don't know the size. Afraid to proceed without knowing what's going to fall apart. I've always been good at taking things apart, not so good at putting them back together! If there's a better way to do this, let me know please.