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Losi 1/10 Lasernut U4 4WD Brushless RTR with Smart ESC, Black (Losi 03028T2 | LOS03028T2)

Model: Losi 03028T2
Dist. #: LOS03028T2   SKU: LOS03028T2

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List Price:  $609.99
Price:  $539.99
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Updated on Feb 3, 2023 08:08:31 AM

1/10 Lasernut U4 4WD Brushless RTR with Smart ESC, Black...

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TEN 4WD Platform

Spektrum™ 130A Brushless SMART ESC and 4-Pole 1900kv 550 Motor

Spektrum DX3™ 2.4GHz radio system with AVC® and optional telemetry

Waterproof Elements

12mm race influenced threaded aluminum bodied shock absorbers and shock caps

Officially-licensed Lasernut Racing Scale Body & Cage

Officially-licensed BFGoodrich® Mud-Terrain T/A® KM3 Tires

Officially-licensed Raceline 2.2 Wheels

Sway bars

Three Oil Filled Gear Differentials

The TEN 4WD platform is acknowledged all over the world as the personification of strength and sturdiness. The Losi® Lasernut U4 1/10-scale 4WD Rock Racer (RR) RTR with Spektrum™ Smart builds on the TEN style and includes items rock racers require such as aluminum shocks, sway bars and adjustable turnbuckles. Plus, it consists of a complete metric hardware plan for around the world compatibility. The Lasernut is presently the only complete Unlimited U4 FIS (Complete Independent Suspension) racer on the market featuring all the technological advances drivers require consisting of the Spektrum Smart 130A Brushless ESC and Spektrum 4-Pole 1900kv 550 motor providing greater effectiveness improving run times with increased power. Naturally, the ESC is water resistant, totally programmable and comes pre-wired with a high-current IC5™ connector. Drivers stay in control with a DX3™ transmitter, a Spektrum AVC® receiver with guiding top priority, and an officially-licensed Lasernut race-inspired scale U4RC body/roll cage with 2 different graphics and color variations. Interacting with BFGoodrich Tires, the Lasernut U4 has scaled down KM3 tires that have an aggressive tread pattern efficient in dealing with any terrain. The Losi Lasernut Rock Racer is the supreme U4 racer with scale looks, insane speeds and efficiency, and Spektrum Smart Technology.

Needed to Complete

3S or FOUR Hardcase LiPo Battery with IC5/EC5 Connector

3S/4S Suitable LiPo Battery Charger

Protective LiPo Storage/Charging Case

What's in the Box?

(1) Lasernut U4 4WD Brushless RTR Automobile with:

(1) Spektrum™ Firma 130A Brushless SMART ESC (set up)

(1) Spektrum™ 4-Pole 1900kv 550 Motor (set up)

(1) Spektrum™ SR6100AT Receiver with AVC

(1) Spektrum DX3™ 2.4GHz Radio Transitter

(1) Item Manual


Legendary TEN Platform

Legendary TEN Platform
The famous, high-performance TEN platform features a super-tough aluminum chassis and the ability to change the Lasernut U4 independent suspension and drivetrain for any condition.

Spektrum SMART ESC

Spektrum SMART ESC
The ESC is water resistant, totally programmable and comes pre-wired with a high-current IC5 connector. The ESC will deal with the majority of sensorless brushless motors and is 3S-4S Li-Po compatible.

Formally Accredited Scale Body and Roll Cage

Officially Accredited Scale Body and Roll Cage

Officially Licensed Scale Body and Roll Cage
A Lasernut Licensed race influenced scale U4RC body/roll cage with amazing graphics provided in 2 different color variations with a flip up cage for simple access to the battery.

Formally Accredited Wheels and Tires

Officially Licensed Wheels and Tires
The included scale certified Raceline 2.2 racing wheels and BFGoodrich KM3 tires include an aggressive tread pattern that deals with any terrain and good appearances while out on any course.

Waterproof Electronic devices

Waterproof Electronics
The Lasernut U4 is packed with water resistant electronics consisting of the receiver, servo and ESC. Everything is sealed against the aspects enabling you to splash in the rain, spin in the mud and make tracks in the snow. It's full-throttle liberty to run anytime, rain or shine

Coil-Over Oil Filled Shocks with Pre-Load Adjustment

Coil-Over Oil Filled Shocks with Pre-Load Adjustment
Adjustable oil filled coil-over shocks on all four corners take in the gnarliest terrain. The aluminum threaded 12mm shocks are fully-adjustable and enable you to tune the handling of the Lasernut U4 to maximize efficiency and dominate anywhere.

Aluminum Chassis

Aluminum Chassis
The structure of the Lasernut U4 includes a 3mm, anodized aluminum chassis plate with a 4mm upper deck. Whether you are hitting the rocks, getting big air, or simply wide open, the 3mm chassis simply keeps requesting more!

LED Light Bar and Pod Lights

LED Light Bar and Pod Lights
The fun doesn't stop even when the sun goes down with the Lasernut U4. A fantastic LED lights on the incorporated light bar cast more than enough illumination for performing at night. The pod lights are amber.

Adjustable Turnbuckles

Adjustable Turnbuckles
For included adjustability and tune-ability, adjustable turnbuckles come basic on the Lasernut U4.

Adjustable Sway Bars

Adjustable Sway Bars
The included sway bars are totally adjustable and help you push the Lasernut U4 to its limitations.

Adjustable Shock Towers

Adjustable Shock Towers
4mm 6061-T6 Aluminum shock towers are built tough to hold up against the punishment the font style end of the Lasernut U4 will receive

Independent Front and Rear Suspension

Independent Front and Rear Suspension
The front and rear suspension offer incredible handling with a consistent feel and the ability to take in bumps. Everything amounts to a buggy that's dialed in for maximize efficiency right out of package.

4x4 Driveline with Adjustable Differentials

4x4 Driveline with Adjustable Differentials
Full-time 4x4 offers increased traction and handling. The front, center (aluminum) and rear differentials can likewise be tuned for various conditions.

Metric Hardware

Metric Hardware
Complete metric hardware is included throughout the Lasernut U4, consisting of bearings, screws and nuts.

50+ MPH Firma Motor

50+ MPH Firma Motor
The brushless Spektrum Firma 4-Pole 1900kv 550 Motor will offer excellent power (50+ MPH) with a 4 cell Lipo (not included).

Spektrum DX3 Radio System

Spektrum DX3 Radio System

Spektrum™ DX3™ Radio System
The Spektrum™ DX3™ radio system offers innovative functions like AVC control, a 3-position throttle restricting switch and travel change.

The Full-Throttle Liberty of AVC Innovation

The Full-Throttle Freedom of AVC Technology

The Full-Throttle Freedom of AVC® Technology
The receiver's integrated AVC® (Active Automobile Control®) traction control system works behind the scenes, making hundreds of throttle and guiding modifications per 2nd, so more of the motor's power is translated into ballistic speed and acceleration instead of simply flying dirt. The patent-pending AVC system includes a level of efficiency that merely cannot be found with any vehicle from any producer aside from Horizon Hobby. Like traction control in your full-blown vehicle, you can activate or shut off the system on the fly and change the level of stability based upon driving conditions. Any RC vehicle can go quickly and with AVC you can go quicker while keeping maximum stability in all driving conditions.


Approximate Assembly Time: No assembly needed

Batteries: 3S-4S LiPo, offered separately

Battery Measurements: t

Body: Trimmed and painted

Brakes: Important with ESC

Bushing Material: Metal

Chassis: 3mm, 6061 T-6 Aluminum

Conclusion Level: Ready-To-Run

Differential: Sealed viscous filled gear type

Drivetrain: 4WD

Ground Clearance: 1.75 in (44.4mm)

Height: 8 in (203.2mm)

Internal Gear Ratio: 3.89:1

Length: 24.3 in (617.2mm)

Motor Size: 550 4-pole, 1900Kv

Motor Type: Brushless, Non-sensored brushless

Pinion: 12T

Shock Type: Aluminum body oil-filled

Speed Control: Y

Suspension: Independent

Innovation : Smart Innovation

Tire Diameter: 5.75 in (146mm)

Tire Tread: BFG Mud Terrain

Track: Front and Rear 13.25 in (336.5mm)

Weight: Varies with devices

Wheel Width: 1.63 in (41.4mm)

Wheelbase: 14.75 in (374.6mm)
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