i dont just do breaking, i do a lesson were we do all aspects of a car, like taking the car apart completly and working out all torques and pressures within all the major parts, i do appologise to andrew tho, after reading his post my coment sayin he is a grade A retard, was wrong, he has a great understanding about brakes, and to do with thermal expansion, expansion is minimal, pads are composite and are made up of many abrasive materials, they are made this way so they dont expand to a degree that it actualy matters, but friction is dependant on heat, hence higher temperatures mean increased chance of locking, because disks have a greater area an twice as much pressure and torgue they create more heat and so lock, andrew is rite tho, tyres stop you car, not brakes, but disks are still better because they create twice the force an four times the torque
