Traxxas 85086-4 - Unlimited Desert Racer 4WD Electric Race Truck with Lights
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.
Batteries & Charger are not included, these are the compatible batteries and chargers:
Compatible Lipo Batteries:
- Traxxas 2842X 5000mAh 7.4v 2-Cell 25C LiPo Battery
- Traxxas 2843X - 5800mAh 7.4v 2-Cell 25C LiPo Battery
- Traxxas 2844R - 5200mAh 7.4v 2-cell 35C LiPo Battery
- Traxxas 2869X - 7600Mah 7.4V 2-Cell 25C Lipo Battery
- Traxxas 2872X - 5000mAh 11.1V 3-Cell 25C LiPo Battery
- Helios 11.1V 3S 5200mAh LiPo with Traxxas Plug
- Traxxas 2889X - 5000mAh 14.8v 4-Cell 25C LiPo Battery
- Traxxas 2890X - Lipo Battery 4S - 6700MAH 14.8 Volts
Compatible Nimh Batteries:
Compatible Chargers:
- Traxxas 2970 - Ez-Peak Plus 4-Amp Nimh/Lipo Fast Charger With Id Auto
- Traxxas 2971 - EZ-Peak Live 100W NiMH/LiPo charger (2971A)
- Traxxas 2972 - Charger, EZ-Peak Dual, 100W, NiMH/LiPo with iD Auto Battery Identification
- Traxxas 2973 EZ-Peak Live Multi-Chemistry Battery Charger w/Auto iD (4S/26A/200W)
- Traxxas 2981 - EZ-Peak Plus 4s Charger
Completer Packs:
- Traxxas 2990 - 2 of 3s 5000mah Battery/Charger Completer Pack
- Traxxas 2991 - 2 of 2s 7600mah Battery/Charger Completer Pack, Includes Ez Peak Dual Charger X 1 And 2-Cell 7600 Mah Lipo Batteries X 2
- Traxxas 2992 - 2s Battery/Charger Completer Pack (Includes #2970 Id Charger (1), #2843X 5800Mah 7.4V 2-Cell 25C Lipo Battery (1))
NB: Some batteries may require a battery expansion kit to fit properly.
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:
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Batteries
Unlimited Desert Racer accepts a single 4s LiPo battery or dual 2s LiPo batteries or dual 3s LiPo batteries
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Charger
Traxxas EZ-Peak Live charger (2971) is recommended for easy and fast charging performance
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AA Alkaline Batteries
Four AA alkaline batteries for the transmitter
Truck 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:
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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)
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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
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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
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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
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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
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Chassis
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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
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Composite inverted tub design
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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
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Steering
- Chassis mounted #2075R metal-gear servo
- Dual bellcrank design with bearings and integrated servo saver
- Solid non-adjustable steering links for rugged durability
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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
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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
MODEL 85086-4: Unlimited Desert Racer Pro-Scale™ 4WD Race Truck, Ready-To-Race® with Traxxas Stability Management®, TQi™ 2.4 GHz radio system, VXL-6s Brushless Power System, LED lighting system, and Licensed Race Replica painted body