- Suit for Xpress Execute XM1S 1/10 4WD Mini E-RC Racing Car.
- Made of high quality 40CR steel, 36% increase in strength over 45# steel.
- CNC machined for precision,which is not easy to rust and break.
- Easy to install,steel gear retrofitting a good part of a remote control vehicle will help improve its performance.
- The speed depends on your gear ration.We provide 40T 41T 42T 43T 44T spur gear to make you more choice in gear ration.