These gears for the TB-04 chassis are made of carbon fiber-reinforced resin material, making them more resistant to wear and therefore suited to use with higher-powered motors.
40T Carbon Fiber-Reinforced Ring Gear x1
16T Carbon Fiber-Reinforced Bevel Gear x1
20T Carbon Fiber-Reinforced Miter Gear x1
Compatible with TB-04 chassis cars.
For best performance, it"s best that gears be installed as a set, and not individually.