George this is for you,i put new pads on the rear of trike. The right hand caliper sticks and the brake gets hot,very hot. I pulled the caliper of and pushed the plungers in with a c clamp,put back together and rode it. It still got hot. The rotor gets very hot compared to the left side. Does any body have some info. That i could use. This trike has stopped better than it ever has. It does have the upgrade installed.