Anybody replaced their front/rear brake rotors and pads on a HD/Roadsmith trike? The front is pretty much like a two wheeler, so basicly the rear. Can the rotors be machined? If replacing what VW part number do I need, or do I have to order from Roadsmith? Anybody here ever redone the brakes? Trike only has 12K miles but rotors are pulsating way too much. Thanks, Kim