What makes up an RC?

Cars & Trucks


There are a number of different ways to transfer power from an RC's motor or engine to the ground. Two-wheel-drive vehicles usually have an enclosed, one-speed, 3-gear transmission, though toy-class RCs and some lightweight hobby-level racecars directly drive a solid rear axle off of the spur gear.

2wd electric truck rear axle assembly

2WD rear pod

Four-wheel-drive (all four wheels driven equally) or all-wheel-drive (with a center differential that can split power between the front & rear) use either belts or metal shafts to send torque from a more or less mid-mounted powerplant out to the ends of the vehicle. At each driven axle, you'll find either a full-width solid axle or, more commonly, a differential that allows opposite wheels to rotate at different speeds in turns. To a differential is connected a metal or plastic shaft ("dogbone," "half shaft," "CVD," or "CVA") on each side, connected to a final "stub axle" (or just "axle") onto which the wheel itself is mounted.

4wd nitro buggy drivetrain layout

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