So here is the deal. I have a 2008 YZ450F. I was riding a trail that had a alot of deep whoops. I went down and after I cought my breath and picked up my bike I found the that the front wheel was locked. My riding budies and I made sure i didn't bend anything. We loosend the axle nut and the axle clamps. This helped a little but not much. We ended up loosening the bleeder screw on the front caliper and this freed up the front wheel. Then a few miles down the trail the front wheel locked up again. We did the same thing and relived the pressure from the bleeder screw. Once again it the front wheel freed up. this happend one more time before i called it quits. I don't know if the front wheel locked up before I wrecked or after. Could this be a brake bleeding issue or am I dealing with something bigger? If anyone has any idea that could help me troubleshoot I'm all ears.