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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 Jan 7, 2026 06:33:32 AM

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


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Features

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

Water resistant 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

3 Oil Filled Gear Differentials





Overview
The TEN 4WD platform is recognized all over the world as the personification of strength and resilience. The Losi® Lasernut U4 1/10-scale 4WD Rock Racer (RR) RTR with Spektrum™ Smart builds on the TEN design and adds products rock racers require such as aluminum shocks, sway bars and adjustable turnbuckles. Plus, it consists of a complete metric hardware plan for worldwide compatibility. The Lasernut is presently the only complete Unlimited U4 FIS (Complete Independent Suspension) racer on the marketplace including all the technological advances chauffeurs require including the Spektrum Smart 130A Brushless ESC and Spektrum 4-Pole 1900kv 550 motor supplying greater efficiency improving run times with increased power. Of course, the ESC is water resistant, completely programmable and comes pre-wired with a high-current IC5™ connector. Drivers remain in control with a DX3™ transmitter, a Spektrum AVC® receiver with guiding priority, and an officially-licensed Lasernut race-inspired scale U4RC body/roll cage with 2 various graphics and color variations. Interacting with BFGoodrich Tires, the Lasernut U4 has actually reduced KM3 tires that have an aggressive tread pattern capable of managing any surface. The Losi Lasernut Rock Racer is the supreme U4 racer with scale looks, insane speeds and performance, and Spektrum Smart Technology.





Needed to Total

THREE or 4S Hardcase LiPo Battery with IC5/EC5 Connector

3S/4S Compatible LiPo Charger

Protective LiPo Storage/Charging Case

What remains in the Box?

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

(1) Spektrum™ Firma 130A Brushless SMART ESC (installed)

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

(1) Spektrum™ SR6100AT Receiver with AVC

(1) Spektrum DX3™ 2.4GHz Radio Transitter

(1) Product Handbook







 



Legendary TEN Platform

Legendary TEN Platform
The legendary, 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, completely 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 Licensed Scale Body and Roll Cage

Officially Licensed Scale Body and Roll Cage

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





Formally Licensed Wheels and Tires

Officially Licensed Wheels and Tires
The consisted of scale accredited Raceline 2.2 racing wheels and BFGoodrich KM3 tires include an aggressive tread pattern that deals with any surface and great appearances while out on any course.
 

Water resistant Electronics

Waterproof Electronics
The Lasernut U4 is loaded with water resistant electronics including the receiver, servo and ESC. Everything is sealed versus the aspects permitting 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 4 corners absorb the gnarliest surface. The aluminum threaded 12mm shocks are fully-adjustable and allow you to tune the handling of the Lasernut U4 to make the most of performance and control anywhere.
 

Aluminum Chassis

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





LED Light Bar and Pod Lights

LED Light Bar and Pod Lights
The enjoyable does not 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 standard on the Lasernut U4.
 





Adjustable Sway Bars

Adjustable Sway Bars
The consisted of sway bars are completely adjustable and assist you press the Lasernut U4 to its limitations.
 

Adjustable Shock Towers

Adjustable Shock Towers
4mm 6061-T6 Aluminum shock towers are constructed difficult to withstand the penalty the typeface end of the Lasernut U4 will get
 





Independent Front and Rear Suspension

Independent Front and Rear Suspension
The front and rear suspension provide incredible handling with a constant feel and the ability to absorb bumps. It all adds up to a buggy that's called in for make the most of performance right out of package.
 

4x4 Driveline with Adjustable Differentials

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





Metric Hardware

Metric Hardware
Total metric hardware is included throughout the Lasernut U4, including bearings, screws and nuts.
 

50+ MPH Firma Motor

50+ MPH Firma Motor
The brushless Spektrum Firma 4-Pole 1900kv 550 Motor will provide exceptional power (50+ MPH) with a 4 cell Lipo (not consisted of).
 





Spektrum DX3 Radio System

Spektrum DX3 Radio System

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





The Full-Throttle Liberty of AVC Technology

The Full-Throttle Freedom of AVC Technology

The Full-Throttle Freedom of AVC® Technology
The receiver's built-in AVC® (Active Car Control®) traction control system works behind the scenes, making hundreds of throttle and guiding changes per 2nd, so more of the motor's power is translated into ballistic speed and acceleration rather of simply flying dirt. The patent-pending AVC system adds a level of performance that just cannot be found with any car from any producer aside from Horizon Pastime. Like traction control in your major car, you can activate or shut off the system on the fly and change the level of stability based upon driving conditions. Any RC car can go quick and with AVC you can go faster while maintaining maximum stability in all driving conditions.



Specifications

Approximate Assembly Time: No assembly needed

Batteries: 3S-4S LiPo, sold individually

Battery Measurements: t

Body: Trimmed and painted

Brakes: Essential with ESC

Bushing Product: Metal

Chassis: 3mm, 6061 T-6 Aluminum

Completion 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

Technology : Smart Technology

Tire Diameter: 5.75 in (146mm)

Tire Tread: BFG Mud Surface

Track: Front and Rear 13.25 in (336.5mm)

Weight: Differs with equipment

Wheel Width: 1.63 in (41.4mm)

Wheelbase: 14.75 in (374.6mm)

Frequently Bought Together

Losi 1/10 Lasernut U4 4WD Brushless RTR with Smart ESC, Black
+
Common Sense RC Lectron Pro 11.1V 5200mAh 50C Lipo Battery with EC5 Connector
This Item: Losi 1/10 Lasernut U4 4WD Brushless RTR with Smart ESC, Black
$539.99
Common Sense RC Lectron Pro 11.1V 5200mAh 50C Lipo Battery with EC5 Connector
$72.09

Total Price: $612.08

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