The ECX RC ECX232022 Ring & Pinion Set is designed for RC model vehicles in the 1:10 scale, specifically for the ECX1/10 4WD all models including Circuit, Ruckus, and Torment. This set is compatible with electric vehicles and is suitable for advanced hobbyists aged 17 years and up. Made in China by the brand ECX, this ring & pinion set is a crucial component for the drivetrain and steering system of RC cars, trucks, and motorcycles, ensuring smooth and precise gear engagement for optimal performance during off-road racing or recreational driving.