1. Made of high quality steel to increase wear resistance and extend service life;
2.Precision CNC machined steel structure, stable and durable;
3.Perfectly match the original gearbox, easy to install;
4. 5 reduction ratios for you to choose from:
3 stock reduction ratios:16.6:1, 9.69:1(overdrive 71%), 40.3:1(underdrive 59%),
2 new reduction ratios: 13.17:1(overdrive 26%), 25.87:1(underdrive 36% )
5.Motor Gear:11T
6.Package includes: gear*4; 3×6× 2.5 bearing*6; 3×16 pin*2;
7.Suitable for 1/18 RC Crawler Car TRX-4M rc crawler.