ROYAL
HELICAL HI-TORQUE METAL GEARS
GEAR BOX VER.II/III
STUDY TO WORK WITH A SPRING OF 140M/S
FOR ALL MODELS
IN A RATION 26.5:1
HELICAL TEETH MAKE LESS SOUND AS NORMAL TEETH
HELICAL HI-TORQUE METAL GEARS
GEAR BOX VER.II/III
STUDY TO WORK WITH A SPRING OF 140M/S
FOR ALL MODELS
IN A RATION 26.5:1
HELICAL TEETH MAKE LESS SOUND AS NORMAL TEETH