Device major function & use:
1. The gearing set including metal main gear + metal motor gear + aluminum main gear adapter to make sure power direct transfer towards the gear field, with different gearings, the speed and torque can be well accomplished for various performance.
2. We recommend the tooth combination as below
TXM355315T, 16T, 17T, 18T
TXM355416T, TXM355418T
TXM355515T, TXM355517T
3. we provide multiple colors for the aluminium adapters, but gears continues to be to black colored just.
4.This product can't fit for S8