my rear rotor is bent so i bought a new rotor from a shop (honda shop of all places). i also bought pads because there was literally no pad left. i asked if that could have been what bent my rotor and the shop owner said no, what bent my rotor was the caliper. he said the caliper was a floating piston caliper or something and there was a allen bolt that was froze up and not allowing it to float and bent the rotor. he said i could put a caliper off of a honda on it and not have that problem ever again. he didnt say what bike the caliper was from. he said they were both made by nissin and he would sell me one for a little over $100. i think he said $130 to be exact. a new oem yamaha caliper is WAY more expensive. has anyone done this or ever heard of it?