4x4 RC off-road rock crawlers are remote-controlled scale vehicles designed for extreme terrain navigation, emphasizing torque, articulation, and low-speed control over speed. They mimic full-size off-road rigs with four-wheel drive, locked differentials, and oversized knobby tires for climbing rocks and obstacles
Specifications
Key Features
Scale sizes: Common in 1/10 (around 550mm long, 300mm wheelbase) or smaller 1/18 scales for indoor/outdoor use.
Suspension: Multi-link systems with oil-filled shocks enable 45-60° approach angles and high ground clearance (50-80mm).
Powertrain: Brushed motors (e.g., 540-size), metal gears, portal axles for torque, often with NiMH or LiPo batteries lasting 20-30 minutes.
Control: 2.4GHz radios with steering servos (15kg+ torque) and ESC for precise crawling at 1-5 mph.