How to Build a 1/10 Scale RC Crawler? | Build Your Own

Building a 1/10 scale RC crawler is best done by starting with a reliable RTR kit or chassis, then adding your selected axles, transmission, motor, and suspension.

The most dependable build path for a beginner is to begin with a ready-to-run (RTR) model or a chassis-based kit rather than fabricating everything from scratch. RTR prices range from $299 for entry-level to $599–$799 for premium models. If you’d rather pick your own parts, a chassis kit with a solid or portal axle setup gives you full control without needing to cut frame rails from raw material.

Building Your 1/10 Scale RC Crawler: Platform First

Choose your platform first — RTR or chassis kit. An RTR gets you crawling right away, while a kit teaches you every component. For a body-on-frame style, measure the body length and wheelbase before cutting frame rails; the frame should end inside the body for bumper mounting and axle clearance. A common scratch-build approach uses two ½-inch-thick Delrin or plastic cutting boards for the chassis plates, plus screws, transmission, axles, shocks, beadlock wheels, crawler tires, servo, transmitter/receiver, and a LiPo or NiMH battery. If you’re shopping for a capable pre-built crawler, see our roundup of the best 1/10 crawlers on the market to compare models.

Choose Drive System and Assemble Running Gear

Decide on axle type (solid or portal), motor (brushed or brushless), and transmission. Solid axles are simpler and cheaper; portal axles add ground clearance. Brushless motors offer more power and efficiency but cost more. Assemble the transmission, axles, motor, driveshafts, and electronics (ESC, receiver, steering servo) in that order. Tools commonly needed: X-Acto knife, compact electric screwdriver, M3 hex drivers, screwdrivers, servo tape, and lexan scissors for body trimming. When installing the suspension, fit the shocks at ride height, then mark the shock centerline using the axles and ride height before fabricating shock towers. This ensures proper geometry — when done, the chassis should sit level with no binding.

Body, Tires, and Final Setup

Mount the body — typically lexan — and trim it with lexan scissors. Use beadlock wheels to hold the tires securely; this also lets you change tire compounds easily without glue. Scale details like bumpers, fenders, and a spare tire add realism and weight distribution. For the course, a 1/10 rig needs at least a 10×10-foot area for a basic track; 10×20 feet allows a loop and multiple obstacles. Use rocks in the 2–6 inch range with enough gaps to avoid getting stuck. Final tuning: adjust shock oil weight, tire foams, and steering endpoints. After rolling it off the bench, check that all four wheels touch the ground evenly with no drivetrain binding — that’s your success cue.