TORSION CONTROLLER variator spring guide Code 6115781 OVER RANGE MHR ALUMINUM - PIAGGIO 2000 (LONG CRANKCASE) 6115780 OVER RANGE MHR ALUMINUM - PIAGGIO 2000 (SHORT CRANKCASE) 6115821 OVER RANGE MHR ALUMINUM - YAMAHA / MINARELLI 6116249 OVER RANGE MHR ALUMINUM - YAMAHA / MINARELLI