Tamiya RC Car High Hi-Torque Servo Saver. Item Name Tamiya RC Car High Hi-Torque Servo Saver. Usable on : Tamiya TA03/TA04/TA05/TA06, TB01/TB02, TB-EVO. I/II/III, TGX, TG10 and TRF414/TRF415/TRF416/TRF417 / FF03/DF03/M04/M05/M06/TRF511/TRRF502X/DB01/DB02/CR01 etc Chassis Cars.