about a month ago I took off my rear wheel to find out why it was hard to spin by hand. I took off the collar and tried to spin the bearing. they were seized, and I could not spin them. $100 later, I had a new set of bearing installed. the funny thing was that the original bearings were still good! they were just pressed in to tight so the inner race was press on spacer and would not spin. I did one ride on the new bearings and everything was fine. so today while I was outside in the garage, I noticed that the rear wheel was hard to spin... Again. so I took the rear wheel off and got the bearing to spin freely. this got me thinking that torquing the rear axle nut to 90 ft-lbs is to much and is causing the bearing to pushed farther into the wheel than intended. so I tightened the nut to 75 ft-lbs instead of the recommend 90. Do you think that this is OK and has anyone else run in to this problem before.