JavaScript seems to be disabled in your browser.

You must have JavaScript enabled in your browser to utilize the functionality of this website. Click here for instructions on enabling javascript in your browser.

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

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

Be the first to review this product. (Write Review)

Out of stock

List Price:  $609.99
Price:  $539.99
You Save:  $70 (11%)

This item will earn you 540 reward point(s).
540 points = $10.80 off your next order. Learn More

Updated on Sep 26, 2025 10:00:36 AM

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


.mediaFeature [padding:2px 0;]
.safeTech [background:#6f92a5; float:left; padding:10px; margin:10px; font-size: 17]
.safeTech, .safeTech h4, .safeTech h3 [color:#fff;]

.aligncenter [
text-align: center;
]



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 Components

12mm race inspired 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 sturdiness. The Losi® Lasernut U4 1/10-scale 4WD Rock Racer (RR) RTR with Spektrum™ Smart constructs on the TEN design and adds items rock racers demand such as aluminum shocks, sway bars and adjustable turnbuckles. Plus, it includes a complete metric hardware bundle for worldwide compatibility. The Lasernut is currently the only total Unlimited U4 FIS (Complete Independent Suspension) racer on the market featuring all the technological advances drivers demand consisting of the Spektrum Smart 130A Brushless ESC and Spektrum 4-Pole 1900kv 550 motor providing greater performance improving run times with increased power. Obviously, the ESC is water resistant, completely programmable and comes pre-wired with a high-current IC5™ adapter. Chauffeurs stay 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 different graphics and color variations. Interacting with BFGoodrich Tires, the Lasernut U4 has scaled down KM3 tires that have an aggressive tread pattern capable of dealing with 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

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

3S/4S Compatible 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 includes 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 adapter. The ESC will work with many sensorless brushless motors and is 3S-4S Li-Po compatible.
 





Officially Accredited Scale Body and Roll Cage

Officially Accredited Scale Body and Roll Cage

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





Officially Accredited Wheels and Tires

Officially Licensed Wheels and Tires
The included scale licensed Raceline 2.2 racing wheels and BFGoodrich KM3 tires include an aggressive tread pattern that handles any surface and good looks while out on any course.
 

Water resistant Electronic devices

Waterproof Electronics
The Lasernut U4 is loaded with water resistant electronic devices consisting of the receiver, servo and ESC. Whatever is sealed against the components enabling you to sprinkle in the rain, spin in the mud and make tracks in the snow. It's full-throttle flexibility to run anytime, rain or shine
 





Coil-Over Oil Filled Shocks with Pre-Load Change

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 permit you to tune the handling of the Lasernut U4 to maximize performance and control anywhere.
 

Aluminum Chassis

Aluminum Chassis
The foundation of the Lasernut U4 consists of a 3mm, anodized aluminum chassis plate with a 4mm upper deck. Whether you are striking the rocks, getting big air, or simply large open, the 3mm chassis simply keeps requesting 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 dazzling LED lights on the integrated light bar cast ample lighting for running 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 included sway bars are totally adjustable and assist you press the Lasernut U4 to its limits.
 

Adjustable Shock Towers

Adjustable Shock Towers
4mm 6061-T6 Aluminum shock towers are built difficult to withstand 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 constant feel and the ability to absorb bumps. All of it adds up to a buggy that's called in for maximize performance right out of package.
 

4x4 Driveline with Adjustable Differentials

4x4 Driveline with Adjustable Differentials
Full-time four-wheel drive provides 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 featured throughout the Lasernut U4, consisting of bearings, screws and nuts.
 

50+ Miles Per Hour Firma Motor

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





Spektrum DX3 Radio System

Spektrum DX3 Radio System

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





The Full-Throttle Flexibility of AVC Innovation

The Full-Throttle Freedom of AVC Technology

The Full-Throttle Freedom of AVC® Technology
The receiver's built-in AVC® (Active Automobile Control®) traction control system works behind the scenes, making numerous throttle and guiding modifications per 2nd, so more of the motor's power is equated into ballistic speed and acceleration instead of simply flying dirt. The patent-pending AVC system adds a level of performance that merely cannot be discovered with any lorry from any manufacturer besides Horizon Pastime. Like traction control in your full-blown lorry, you can activate or deactivate the system on the fly and change the level of stability based upon driving conditions. Any RC lorry can go fast and with AVC you can go quicker while keeping optimal stability in all driving conditions.



Specifications

Approximate Assembly Time: No assembly required

Batteries: 3S-4S LiPo, offered separately

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 thick filled equipment 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 Size: 5.75 in (146mm)

Tire Tread: BFG Mud Surface

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)

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
+
Losi 1/10 Lasernut U4 4WD Brushless RTR with Smart ESC, Blue
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
Losi 1/10 Lasernut U4 4WD Brushless RTR with Smart ESC, Blue
$539.99

Total Price: $1,152.07

Add All Three To Cart

Customers who bought this product also purchased

Visual Parts Finder