My rear brake seized on me and i'm chasing some advice and info? Riding home from work was all normal until about 400m from home. I live on top of a fairly large, steepish hill. Normally I get a fairly brisk run up and cruise up at 60 in 4th. Today I go up to 4th and went for a bitâ€¦ dropped down to 3rd with the throttle wide open and still slowing very slightly and thinking wtf? I though maybe I wasnâ€™t used to the power having just done a big ride on my 650 a few days agoâ€¦ dropped to 2nd and powered up the hill. Got to the top and stopped to see what was going on. The rear caliper was glowing red! Pulled over, jumped off and had a think. I couldnâ€™t move the bike at all now. A friendly neighbour offer a helping hand and we agreed to go get my trailer and take my bike the 30m across the road to my house. After going home and changing went back outside and the wheel was now spinning freely but there was no resistance in the brake pedal. Now it just moves all the way though its travel very easily, but always returns to its usual position. What do you think happened? I have read a few other articles but most of them went (only just) over my head. Why after it cooled did the caliper free up, did the rotor contract enough to release as it cooled? Will this be an expensive fix or could I have a crack at it myself? I'm not totally retarded with tools, just inexperienced and slightly overcautious Could this have ruined the rotor (which I hear are expensive)? Will it be ok to ride to my mechanic? Will it heat back up and lock again? Thanks for reading guys +edit: The bike is a 2005 Hyo 250 Comet. 25,000 km's. New rear brake pads about 5-7000 km's ago installed by a professional mechanic. They have been squeeky at low speed since i got the new pads.