Anyone have any idea how tight I am supposed to clamp the bike onto the Cyclops trainer? I am concerned I have been tightening it too tight (with safety in mind) and possibly risking damage to the frame or hub. When I try to unclamp the bike from the trainer, its rather tough to do.

Separately, when I stand on the bike, I sense I am putting a lot of stress on the frame, as the back wheel is locked in, but I am torquing the bike with my feet and arms.

Tx