Unlimited Desert Racer: Pro-Scale 4WD race truck. Ready-To-Race with Stability Management, TQi 2.4GH

The Unlimited Desert Racer combines Pro Scale performance with extreme 6s power for the most thrilling RC driving experience possible. The UDR drives like a real desert truck because it's engineered like a real desert truck. A 4-link solid rear axle provides huge suspension travel with authentic driving dynamics. From the cantilever sway bars and high-voltage lighting system to the GTR shocks, Traxxas accurately reproduced a true desert racer in both form and function.



PRO SCALE PERFORMANCE

Pro Scale is a new Traxxas innovation that captures true-scale realism and combines it with extreme 6s LiPo power and 50+ mph performance. The Traxxas Unlimited Desert Racer faithfully captures the look and feel of Trophy Trucks and Unlimited Trick Trucks as they charge hard across the desert at full speed.

DRIVING REALISM

The Traxxas UDR is engineered on an authentic, true to scale 4-wheel drive desert race truck chassis. The 4-link solid rear axle design provides huge suspension travel with authentic driving dynamics. From the cantilever sway bars to the 8 GTR shocks, Traxxas has accurately reproduced a true unlimited desert race chassis in both form and function.

6S EXTREME POWER

The 50+ mph UDR delivers its pro-level performance with brutal 6s power. The VXL-6s ESC combines massive power handling with high-tech telemetry features. An ultra-tough drivetrain harnesses the extreme power to make it easy to control and fun to drive.

INNOVATION

Explore these key features to see how every design element on the Unlimited Desert Racer combines to create an authentic and thrilling driving experience.

DETAILS

Beneath the Unlimited Desert Racer's tough exterior and beautifully sculpted, fully-integrated tube frame chassis are the keys to its thrilling performance. Peer beneath the skin to discover what lies at the heart of this revolutionary new off-road vehicle.

Vehicle Specs
Length: 27.32 inches (694mm)
Front Track: 13.57 inches (345mm)
Rear Track: 13.57 inches (345mm)
Ground Clearance: 2.27 inches (58mm)
Weight: 13.4lb (6.1kg)
Height: 10.29 inches (261mm)
Wheelbase: 16.53 inches (420mm)
Front Shock Length: 5.28 inches (134mm)
Front Threaded Shock Length: 5.28 inches (134mm)
Rear Shock Length: 6.3 inches (160mm)
Rear Threaded Shock Length: 5.55 inches (139mm)
Tires (pre-glued): 134mm x 57mm BFGoodrich KR3 replicas
Wheels: dual diameter 40mm x 56/81mm
Speed Control: Velineon VXL-6s
Motor (electric): 2200kV
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 Structure / 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 (stock gearing): 4s LiPo - 30+ mph, 6s LiPo - 50+ mph
Skill Level: 5
Battery Compartment: 181mm x 46mm x 56mm
Motor Specs
Type: Sensorless brushless
Weight: 14.32oz (406g)
Length: 2.97 inches (75.5mm)
Diameter: 1.65 inches (41.8mm)
Connector Type: Traxxas 6.5mm bullet connectors
ESC Specs
Input Voltage (cells): 4s-6s LiPo (max: 25.2 volts)
Case Size: 2.28" (58mm) x 2.83" (72mm) x 1.81" (46mm)
Weight: 7.30oz (207g)
BEC Voltage: 6.0 V
BEC Current Continuous: 10 A
BEC Current Peak: 20 A
Reverse Delay: Yes, with lockout
Low Voltage Detection (LVD): Yes, programmable
Ports: RX Input, Auxiliary Fan, Traxxas Accessory Port
Features:

High-Voltage LED Lights
Dual straight LED bumper-mounted LED light bars (52 LEDs each)
Curved roof light bar (52 LEDs)
Multifunction red and amber brake light/class light bar
High-voltage 8-channel power amplifier for intense, brilliant LED lighting
Regulated output for stable lighting performance
(no flickering or dimming as the battery voltage changes)
VXL-6s Waterproof Electronic Speed Control
6s LiPo compatible
Integrated cooling fan
Real-time telemetry via Traxxas Link
Machined heat sink
3-LED status indicators
Powered accessory ports
10-gauge silicone wire
Velineon 2200kV Brushless Motor
4-pole 2200kV brushless motor
5mm output shaft
Finned can for better heat dissipation
Up to 50+ mph with Two 3s LiPo Batteries
Traxxas Stability Management (TSM)
Improves straight line acceleration and braking on low-traction surfaces
Maintains steering composure to allow throttle-on powerslides
Never dulls throttle or slows the truck
Adjusts from off to 100% assistance from the transmitter
Innovative Battery Compartment
Accommodates single 4-cell LiPo or dual 2-cell or 3-cell LiPo batteries
Opens from underneath without removing body
Fixed oversized battery strap locks batteries securely into place
Separate skid plate to protect batteries
TQi 2.4GHz High Output Radio System
TQi 2-channel transmitter
Automatically stores and loads settings for up to 30 Traxxas Link enabled models
Programmable multi-function knob
Adjustable steering and throttle percentage (dual rates)
Adjustable steering and throttle sensitivity (exponential)
Adjustable steering and throttle end points
High 13ms frame rate and near-zero latency for responsive control
5-channel micro receiver (#6533) with fail-safe security
Patented waterproof receiver box with easy-access plug
Large Pro Scale Body with Highly Detailed Replica Parts
Heavy-duty truck body mounts to chassis in multiple locations
Strong and functional tube frame mimics full-size off-road racers
Detailed interior cabin with driver figures
Replica brake calipers and discs with integrated 17mm wheel hubs
Two fully-functional spare tires and functional spare driveshaft
Highly detailed replica parts: fire extinguishers, shock reservoirs, jack, and tools
Realistic side plates mount to tube frame
Chassis
Composite inverted tub design
Makes maintenance easier
Lowers center of gravity (CG) for improved handling
Allows easy access to components
Tough skid plates protect critical components
Fully integrated tube frame for scale appearance and added rigidity
Reinforced bumpers to absorb impacts
ESC battery plugs hard mounted to chassis
Suspension
Provides scale looks and authentic off-road driving dynamics
Tough independent double-wishbone front suspension with captured rod ends
Triangulated 4-link rear suspension with solid rear axle (patent pending)
Tough composite trailing arms
Steel upper links with 3 optional positions for suspension tuning
Eight long-travel aluminum GTR shocks; four with springs and adjustable ride height collars
Realistic and functional front and rear sway bars
Detailed functional limit straps on rear axle
Steering
Chassis mounted #2075R metal-gear servo
Dual bellcrank design with bearings and integrated servo saver
Solid non-adjustable steering links for rugged durability
Drivetrain
Steel CV driveshafts (front) with 6mm stub axles
Steel straight axle (rear)
Oil-filled limited slip front differential
Locked steel spool (rear)
Heavy-duty splined front driveshaft
Fixed-length steel rear driveshaft
Transmission
All-steel gear direct drive transmission
Torque-Biasing Center Drive
Removes as a single piece for easy maintenance
Fixed-pin gear mesh system
Wheels and Tires
Replica BFGoodrich KR3 off-road tires
Beadlock-style 17mm dual-diameter wheels
Sealed Ball Bearings
Hex Hardware with Rust-Resistant Black Oxide Coating
What's In The Box:

Unlimited Desert Racer with VXL-6s ESC and 2200kV motor
Quick Start Guide
TQi 2.4GHz radio system
High quality maintenance tools
What You'll Need:

Batteries
Unlimited Desert Racer accepts a single 4s LiPo battery or dual 2s LiPo batteries or dual 3s LiPo batteries
Charger
Traxxas EZ-Peak Live charger (TRA2971) is recommended for easy and fast charging performance
AA Alkaline Batteries
Four AA alkaline batteries for the transmitter