Hi my lexmoto xtrs was stolen recovered in a pretty bad way HotWired ect so I've been going though fixing bits I can do myself. I've just taken it for a little run the brake pedal was a bit stiff I've pressed hard to try and loosen it now my back brake has locked on and wwon't release I'm not that mechanically minded but willing to have a go if anybody can give me an idea how to release the brake not sure if its going to be stuck calipers or a dodgy release spring thanks in advance