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Traxxas Unlimited Desert Racer (Traxxas) (Traxxas 85086-4-TRX | TRA85086-4-TRX)

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Model: Traxxas 85086-4-TRX
Dist. #: TRA85086-4-TRX   SKU: TRA85086-4-TRX

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Price:  $749.95

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Updated on Jan 8, 2026 04:25:12 PM

TRX-4 SPORT...
Hard, Light-weight Pickup Body

Low profile bumpers for increased clearance

Red differential covers and D-rings

Trail-Tuned XL-5™ HV Waterproof Electronic Speed Control

Totally water resistant style

5 drive profiles

Sport Mode — forward / brake / reverse

Race Mode — forward / brake / no reverse

Training Mode™ - 50% forward / 100% brake / 50% reverse (patented)

Trail Mode — forward / brake / reverse / with trail-tuned drag brake in neutral

Crawl Mode — forward / instant reverse - no neutral with 100% hill holding brake

Traxxas EZ-Set® one-button setup

Large, efficient heat sink

Wide voltage latitude 6–7 cell NiMH (7.2–8.4 V) and 2–3S LiPo (7.4–11.1 V)

Two phase low voltage security (LVD)

Titan® 550 Motor

Powerful Titan 21T reverse rotation motor with internal cooling fan

Precise predetermined gear mesh changes

Motor retention different from gear mesh

TQ™ 2.4 GHz 2-Channel Radio System

Ergonomic transmitter with internal antenna

Traxxas 6519 3-channel micro receiver with fail-safe security

Patented O-ring sealed water tight receiver box keeps the micro receiver dry

Rigid Steel Frame

1.5 mm thick steel frame rails increase torsional rigidity

Ingenious style permits four wheelbase positions (300 mm, 312 mm, 324 mm, 336 mm)

Adjustable rear shock tower positions for SWB and LWB configurations

Bumpers adjust fore and aft

Rugged rock rails adjust for width

Wire routing clips integrated into frame rails

Ingenious Battery Compartment

Hinged battery strap permits quick and easy battery access

No pins to lose

Accommodates different height batteries

Accepts full-size long battery packs

Integrated compartment accepts smaller sized 1/16 scale batteries (with optional strap)

Portal Axles

Boost ground clearance

Remove torque twist

Steel equipments

Improve axle geometry and decrease stress on driveshafts

Drivetrain

Full-time shaft driven 4-wheel drive

Hard 6 mm stub axles

Steel front CV driveshafts

Hardened steel rear axle shafts

Spool-locked front and rear differentials

Steel gear transfer case

Transmission

Single-speed with steel equipments

Double horizontal shafts

Twin friction plate slipper clutch

Quickly removed for maintenance

Steering

Chassis mounted 2075X metal gear digital servo

Superior 45° guiding angle

Direct steering (no servo saver)

Steering geometry remedied for bump steer

Suspension

Front — 3 link with panhard

Rear — triangulated 4 link

Heavy-duty rod ends with steel hollow balls

5 mm size steel link rods with 4 mm threaded ends

Aluminum GTS Shocks

Oil-filled coilover GTS shocks exclusive to TRX-4 chassis

Silver-anodized aluminum bodies

Threaded bodies with collars easily adjust flight height

Silky smooth damping for the most difficult tracks

O-ring cap seal and dual X-ring shaft seals

Wheels and Tires

Rugged black 5-spoke wheels

Pre-mounted 1.9? Canyon Trail tires with trail-tuned foam inserts

Trail tuned S1 rubber compound

12 mm steel hex

Sealed Ball Bearings

Hex Hardware with Rust-Resistant Black Oxide Covering

Requires Battery and Charger (Sold Separately)

Here is a fantastic thing that many others have purchased the same time.

5000Mah 11.1V 3-Cell 25C Lipo Battery

5000mAh 11.1V 3-Cell 20C Lipo Battery

TRAXXAS CERTIFIED LIPO POWER! Traxxas Qualified iD-Equipped LiPo batteries are engineered to offer the punch and on-demand power for reaching the top speeds that Traxxas designs are developed to attain. Traxxas Power Cell iD-Equipped LiPo batteries are engineered particularly to fit Traxxas designs and optimize their complete efficiency potential. Just Traxxas offers you more of what you want most: easy installation, a great cost, and the most speed and run time available.

Specifications:

  • Length: 135mm

  • Height: 28.5mm

  • Width: 44mm


  • Frequently Bought Together

    Traxxas Unlimited Desert Racer (Traxxas)
    +
    Traxxas 5000Mah 11.1V 3-Cell 25C Lipo Battery
    +
    Traxxas Monster Truck Battery And Charger Completer Pack, W/ 2972 Id Cha
    This Item: Traxxas Unlimited Desert Racer (Traxxas)
    $749.95
    Traxxas 5000Mah 11.1V 3-Cell 25C Lipo Battery
    $79.95
    Traxxas Monster Truck Battery And Charger Completer Pack, W/ 2972 Id Cha
    $269.95

    Total Price: $1,099.85

    Add All Three To Cart

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