This 91-tooth spur gear serves as a vital component in the drivetrain of the Kyosho Sand Master series of 1/10 scale off-road buggies and trucks. Manufactured from durable composite plastic, it is engineered to efficiently transfer power from the motor's pinion gear to the vehicle's transmission, driving the wheels. Its composite construction offers a balance of strength and flexibility, helping to absorb impacts and protect more delicate drivetrain components during intense bashing or crashes, making it an ideal replacement part to maintain optimal performance and extend the life of your RC vehicle.