This problem is really rustrating me- I'm open to suggestions and clues, I definitely need 'em! My XX is a 2000 model with 34K miles on it. Since the last time the rear wheel was removed, something's not been 100% correct. When the right 27mm axle nut is torqued down, there's so much friction I can hardly spin the rear wheel with the bike on the centerstand. No way can I torque the nut to the recommended 69ft/lbs, the wheel would then barely spin. I can only torque it to about 20ft/lbs. Thinking it might be the rear brake caliper, I replaced that along with the bracket and 14mm mounting pin. That's not it, made no difference, brake assembly/rotor showed no signs of overheating, so I've eliminated that possibility right away. The wheel spins freely until that axle nut is torqued down, then something just binds it up. It really feels like way too much friction. Wheel bearings are still good, but doesn't it have to be something in the internal hub itself, or bearings binding to the wheel spacers at this point? What's left to consider, what am I missing?