Rear Wheel/Pedals Locked Up
I have a Schwinn Traveler 12 speed that I was riding yesterday and the rear wheel completely locked up going uphill. You couldn't pedal and it was as if the wheel was stuck in place. I managed to carry the bike home and it appears that I could unlock it by spinning the wheel backwards but it locks up if the wheel is spun forwards. Does anyone know what may be wrong here? Thanks.