UDI RC SIERRA UD1203 Red 1/12 4WD Brushless RTR Short Course Truck – 70KM/H High-Speed Off-Road RC Car

The UDI RC SIERRA UD1203 Red Edition is a race-inspired 1/12 scale brushless short course truck designed for drivers who want hobby-grade performance in a compact yet incredibly durable package. Built with premium materials and advanced engineering, it combines powerful brushless electronics, a reinforced drivetrain, and quick-maintenance features to create an RC truck that’s ready for everything from weekend racing to high-speed off-road bashing. Power comes from a 2845 3800KV brushless motor paired with a 45A programmable brushless ESC , delivering strong acceleration, excellent efficiency, and smooth throttle response. Compatible with both 2S and 3S LiPo batteries , the SIERRA offers exciting performance for beginners while leaving plenty of room for experienced drivers to unlock even higher speeds. Its full-time 4WD drivetrain is built using steel universal drive shafts , a steel center driveshaft , and all-metal transmission gears , providing exceptional strength for demanding driving conditions. The fully enclosed gearbox helps protect internal components from dust, sand, and debris, reducing wear while extending the life of the drivetrain. Maintenance is quick and simple thanks to the truck’s innovative quick-release design . The body shell, center drivetrain, and differential assemblies can be accessed in seconds, making routine servicing, repairs, and upgrades much faster than conventional RC platforms. For superior handling, the SIERRA features adjustable aluminum oil-filled hydraulic shocks , adjustable spring preload, precision steering geometry, dual-ball steering knuckles, and a 17g metal gear digital servo . These components work together to deliver excellent steering accuracy, suspension performance, and vehicle stability over rough terrain. Adding to its aggressive appearance is a highly detailed Sierra-inspired short course body complete with a realistic cockpit, integrated roll cage, flexible TPU fenders, protective side window nets, race graphics, and bright LED headlights for enhanced realism during day or night driving. The included UA42-E Hall Sensor transmitter provides fully proportional steering and throttle with adjustable steering rate, gyro (ESP) control, steering trim, reverse functions, and selectable speed modes, allowing drivers of all experience levels to fine-tune the truck to their preferences. Whether you’re racing across dirt tracks or bashing through rough terrain, the UDI RC SIERRA UD1203 Red Edition delivers speed, strength, and reliability in every run. Key Features Eye-Catching Red Sierra Racing Body Ready-to-Run (RTR) High-Performance 2845 3800KV Brushless Motor 45A Programmable Brushless ESC Supports 2S & 3S LiPo Batteries Full-Time 4WD Drivetrain Fully Sealed Transmission Steel Universal Drive Shafts Steel Center Drive Shaft Full Metal Transmission & Differential Gears Adjustable Aluminum Oil-Filled Hydraulic Shocks 17g Metal Gear Digital Steering Servo Hall Sensor Fully Proportional Radio System Built-in Adjustable Gyro (ESP) Quick-Release Body & Drivetrain Design Scale Cockpit with Roll Cage & Driver Figures Flexible TPU Front & Rear Fenders LED Headlights Excellent for Dirt, Gravel, Pavement & Off-Road Tracks Specifications Feature Specification Brand UDI RC Model SIERRA UD1203 Color Red Scale 1/12 Drive System 4WD Motor 2845 3800KV Brushless ESC 45A Programmable Brushless ESC Battery Support 2S–3S LiPo (XT60) Servo 17g Metal Gear Digital Servo Drivetrain Steel Universal Drive Shafts & Full Metal Gears Shock Type Adjustable Aluminum Oil-Filled Hydraulic Body Material Polycarbonate (PC) Transmitter UA42-E Hall Sensor 2.4GHz Radio Length 375 mm Width 198 mm Height 139 mm Wheelbase 228 mm Ground Clearance 30 mm Tire Diameter 73.3 mm Tire Width 30.5 mm Wheel Hex 12 mm Battery Tray Size 115 × 38 × 25 mm Functions Forward & Reverse Left & Right Steering Full Proportional Throttle Full Proportional Steering Adjustable Gyro (ESP) Steering Dual Rate Steering Trim Multiple Speed Modes High-Speed Off-Road Driving LED Headlights Package Includes 1 × UDI RC SIERRA UD1203 Red Short Course Truck (RTR) 1 × UA42-E 2.4GHz Hall Sensor Transmitter 1 × 2845 3800KV Brushless Motor (Installed) 1 × 45A Brushless ESC (Installed) 1 × 17g Metal Gear Digital Servo (Installed) 1 × LED Lighting System 1 × User Manual Package Does Not Include LiPo Battery Battery Charger 4 × AA Batteries for Transmitter Why Buy the UDI RC SIERRA UD1203 Red? The UDI RC SIERRA UD1203 Red Edition is built for enthusiasts who want race-ready performance with minimal maintenance. Its brushless power system, all-metal drivetrain, sealed transmission, quick-service design, and premium suspension components make it an outstanding choice for high-speed off-road driving. Whether you’re upgrading your RC collection or stepping into the world of hobby-grade brushless vehicles, the SIERRA offers exceptional performance, durability, and value.

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