1/7 Unlimited Desert Racer Ready to Run (Fox) (TRA85086-4-FOX)

The Traxxas Unlimited Desert Racer (UDR®) is a Pro Scale® innovation that combines breathtaking scale realism with extreme 6s LiPo power for 50+ mph performance. Faithfully replicating the look and feel of Trophy Trucks and Unlimited Trick Trucks, the UDR’s true-to-scale chassis and rugged design deliver a fully immersive desert racing experience.

The UDR is built on a realistic 4-wheel drive desert race truck chassis, featuring a 4-link solid rear axle with massive suspension travel and cantilever sway bars. Equipped with eight long-travel GTR shocks, the chassis provides authentic driving dynamics and exceptional off-road performance. The rugged tube frame chassis integrates seamlessly with the detailed Pro Scale body, complete with an intricate interior, molded details, and functional spare wheels and driveshaft.

Powered by the VXL-6s ESC and a 2200 kV sensorless brushless motor, the UDR delivers brutal 6s power with advanced telemetry features for an unmatched driving experience. The all-steel drivetrain, Torque-Biasing Center Drive™, and locked steel spool in the rear ensure durability and control over rough terrain. The ESC handles input voltages up to 6s LiPo, with a built-in cooling fan and machined heat sinks for efficient performance.

The Pro Scale body options include Fox® or RIGID® styles with an open window design to showcase the detailed interior. Precision-molded details such as brake calipers, shock reservoirs, fire extinguishers, and more enhance the realism. Replica BFGoodrich® KR3 tires mounted on beadlock-style wheels deliver exceptional grip and scale accuracy.

Designed for durability and ease of use, the UDR features a composite inverted tub chassis for lower center of gravity, integrated tube frame rigidity, and reinforced bumpers. The innovative battery compartment supports various configurations, accessible from underneath the chassis without removing the body. The TQi™ 2.4 GHz radio system provides precise control, with Traxxas Stability Management® (TSM®) ensuring straight-line stability and traction.

With its realistic suspension, durable drivetrain, and meticulously crafted details, the Traxxas UDR captures the thrill of unlimited desert racing in a highly capable and visually stunning package. The UDR includes the VXL-6s ESC, 2200 kV motor, TQi radio system, Quick Start Guide, and maintenance tools. Additional batteries and a Traxxas EZ-Peak® Live charger are required for operation.

• Pro Scale® Performance captures true-scale realism with extreme 6s LiPo power and 50+ mph speed.
• Authentic 4-wheel drive desert race truck chassis with 4-link solid rear axle and cantilever sway bars.
• VXL-6s ESC with high-tech telemetry features for pro-level performance.
• Rugged Pro Scale body with open window design showcasing tube frame chassis and detailed interior.
• Choose between Fox® or RIGID® body styles with vibrant color options.
• Aggressive replica BFGoodrich® KR3 tires on 17 mm hex Desert Race wheels or licensed Method® Race wheels.
• Durable tube frame chassis absorbs impacts and provides rigid support for suspension and components.
• Realistic chassis side plates add structural rigidity and keep debris out of the cockpit.
• Highly detailed interior with driver figures, switches, safety gear, and navigation components.
• Precision-molded details including replica brake calipers, jack, batteries, oil cans, and fire extinguishers.
• Functional spare tires and driveshaft mounted on the rear frame.
• Chassis includes a composite inverted tub design for easy maintenance and improved handling.
• Long-travel aluminum GTR shocks with adjustable ride height collars for smooth off-road performance.
• Tough independent front suspension and triangulated 4-link rear suspension for dynamic handling.
• Steel CV driveshafts and sealed differentials for durability and consistent power delivery.
• Direct-drive transmission with Torque-Biasing Center Drive™ for efficient power transfer.
• Innovative battery compartment accommodates various battery configurations and provides secure storage.
• High-voltage LED lighting system with bumper-mounted, roof, and multifunction light bars.
• TQi™ 2.4 GHz High Output Radio System with advanced adjustability and model memory.
• Sealed ball bearings and rust-resistant black oxide hex hardware for reduced maintenance.
• Top speed of 50+ mph with dual 3s LiPo batteries.
• Includes Unlimited Desert Racer, Quick Start Guide, TQi™ radio system, and maintenance tools.
• Requires 4s or 3s LiPo batteries, a compatible charger, and four AA alkaline batteries for operation.

• Length: 27.32 inches (694 mm)
• Front Track: 13.57 inches (345 mm)
• Rear Track: 13.57 inches (345 mm)
• Ground Clearance: 2.27 inches (58 mm)
• Weight: 13.4 pounds (6.1 kg)
• Height: 10.29 inches (261 mm)
• Wheelbase: 16.53 inches (420 mm)
• Front Shock Length: 5.28 inches (134 mm)
• Rear Shock Length: 6.3 inches (160 mm)
• Tires (pre-glued): 134 mm x 57 mm BFGoodrich® KR3 replicas
• Wheels: Dual diameter 40 mm x 56/81 mm
• Speed Control: Velineon® VXL-6s
• Motor: 2200 kV brushless
• Transmission: Direct-drive with Torque-Biasing Center Drive
• Overall Drive Ratio: 17.89:1
• Front Differential Type: Sealed, 4-gear
• Rear Differential Type: Locked spool
• Center Differential Type: Sealed, 4-gear (1M weight oil)
• Chassis Material: Inverted composite tub
• Brake Type: Electronic
• Drive System: Shaft-driven 4WD
• Steering: Dual bellcranks with ball bearings
• Radio System: TQi™ 2-channel transmitter with 6533 TSM® receiver
• Servo: 2075R Metal Gear
• Top Speed: 4s LiPo – 30+ mph, 6s LiPo – 50+ mph
• Skill Level: 5
• Battery Compartment: 181 mm x 46mm x 56 mm
• Pro Scale® Body: Precision-modeled with detailed interior, available in Fox® or RIGID® styles
• BFGoodrich® Tires and Wheels: Aggressive KR3 replicas, beadlock-style 17 mm hex wheels
• Rugged Tube Cage: Provides rigid support and impact absorption
• Realistic Side Plates: Adds structural rigidity and debris protection
• Detailed Interior: Includes driver figures, switches, radios, and more
• Molded Body Details: Features brake calipers, floor jack, fans, oil cans, and fire extinguishers
• Functional Spares: Includes two spare wheels and a functional spare driveshaft
• LED Lighting: Dual bumper light bars, curved roof light bar, multifunction brake lights
• Suspension: 4-link rear axle, double-wishbone front suspension, eight GTR shocks
• Transmission: All-steel gear direct drive, fixed-pin gear mesh system
• Drivetrain: Steel CV driveshafts, locked spool rear differential
• Chassis: Composite inverted tub with tough skid plates
• Included: Unlimited Desert Racer, VXL-6s ESC, 2200 kV motor, TQi radio, maintenance tools
• Required: 4s LiPo battery or dual 2s/3s LiPo batteries, charger, four AA alkaline batteries