I just bought a 2001 banshee and the rear brakes stop working after 10 min of riding I felt the rear caliper and its torching hot, but it dosnt feel like it stuck because I can roll it with no drag,what could be my problem? After it sits for 10-15 min the rear brakes start working again, ive checked the fluid its full,when they stop working the brake peddle will bottom out with absolutly no rear brakes