Skip to content
Language
Country/region
0 Cart
Item added to your cart

LOS03028T1 LOSI Lasernut U4 4WD RTR Blue

$546.08
$546.08
⚡️ Free shipping over 100$* Canada
⚡️ Free shipping over 200$* USA
* Except Oversize
⏱ Real time inventory
Don't forget to click "notify me" for an out of stock product.
We serve you in both English and French

Overview

Features

  • TEN 4WD Platform
  • Spektrum 130A Brushless SMART ESC and Firma 4-Pole 1900kv 550 Motor
  • Spektrum DX3 2.4GHz radio system with AVC® and optional telemetry
  • Waterproof 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
  • Three Oil Filled Gear Differentials

  • Overview

    The TEN 4WD platform is recognized all over the world as the personification of strength and durability. The Losi® Lasernut U4 1/10-scale 4WD Rock Racer (RR) RTR with Spektrum Smart builds on the TEN design and adds items rock racers demand such as aluminum shocks, sway bars and adjustable turnbuckles. Plus, it includes a full metric hardware package for worldwide compatibility. The Lasernut is currently the only complete Unlimited U4 FIS (Full Independent Suspension) racer on the market featuring all the technological advances drivers demand including the Spektrum Firma Smart 130A Brushless ESC and Spektrum Firma 4-Pole 1900kv 550 motor providing greater efficiency improving run times with increased power. Of course, the ESC is waterproof, completely programmable and comes pre-wired with a high-current IC5 connector. Drivers stay in control with a DX3 transmitter, a Spektrum AVC® receiver with steering priority, and an officially-licensed Lasernut race-inspired scale U4RC body/roll cage with two different graphics and color variations. Working together with BFGoodrich Tires, the Lasernut U4 has scaled down KM3 tires that have an aggressive tread pattern capable of handling any terrain. The Losi Lasernut Rock Racer is the ultimate U4 racer with scale looks, insane speeds and performance, and Spektrum Smart Technology.

    Needed to Complete
    • 3S or 4S Hardcase LiPo Battery with IC5/EC5 Connector
    • 3S/4S Compatible LiPo Charger
    • Protective LiPo Storage/Charging Case
    What's in the Box?
    • (1) Lasernut U4 4WD Brushless RTR Vehicle with:
      • (1) Spektrum Firma 130A Brushless SMART ESC (installed)
      • (1) Spektrum Firma 4-Pole 1900kv 550 Motor (installed)
      • (1) Spektrum SR6100AT Receiver with AVC
    • (1) Spektrum DX3 2.4GHz Radio Transitter
    • (1) Product Manual
    Legendary TEN Platform

    Legendary TEN Platform

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

     

    Spektrum Firma Smart ESC

    Spektrum Firma Smart ESC

    The ESC is waterproof, completely programmable and comes pre-wired with a high-current IC5 connector. The ESC will work with most sensorless brushless motors and is 3S-4S Li-Po compatible.

     

    Officially Licensed Scale Body and Roll Cage
    Officially Licensed Scale Body and Roll Cage

    Officially Licensed Scale Body and Roll Cage

    A Lasernut Licensed race inspired scale U4RC body/roll cage with exciting graphics offered in two different color variations with a flip up cage for easy access to the battery.

    Officially Licensed Wheels and Tires

    Officially Licensed Wheels and Tires

    The included scale licensed Raceline 2.2 racing wheels and BFGoodrich KM3 tires feature an aggressive tread pattern that handles any terrain and good looks while out on any course.

     

    Waterproof Electronics

    Waterproof Electronics

    The Lasernut U4 is loaded with waterproof electronics including the receiver, servo and ESC. Everything is sealed against the elements allowing you to splash in the rain, spin in the mud and make tracks in the snow. It's full-throttle freedom 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 soak up the gnarliest terrain. The aluminum threaded 12mm shocks are fully-adjustable and allow you to tune the handling of the Lasernut U4 to maximize performance and dominate 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 hitting the rocks, getting huge air, or just wide open, the 3mm chassis just keeps asking for 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 brilliant LED lights on the integrated light bar cast more than enough illumination for running at night. The pod lights are amber.

     

    Adjustable Turnbuckles

    Adjustable Turnbuckles

    For added adjustability and tune-ability, adjustable turnbuckles come standard on the Lasernut U4.

     

    Adjustable Sway Bars

    Adjustable Sway Bars

    The included sway bars are fully adjustable and help you push the Lasernut U4 to its limits.

     

    Adjustable Shock Towers

    Adjustable Shock Towers

    4mm 6061-T6 Aluminum shock towers are built tough to withstand the punishment the font end of the Lasernut U4 will receive

     

    Independent Front and Rear Suspension

    Independent Front and Rear Suspension

    The front and rear suspension provide amazing handling with a consistent feel and the ability to soak up bumps. It all adds up to a buggy that's dialed in for maximize performance right out of the box.

     

    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

    Complete metric hardware is featured 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 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 advanced features like AVC control, a 3-position throttle limiting switch and travel adjust.

    The Full-Throttle Freedom of AVC Technology
    The Full-Throttle Freedom of AVC Technology

    The Full-Throttle Freedom of AVC® Technology

    The receiver's built-in AVC® (Active Vehicle Control®) traction control system works behind the scenes, making hundreds of throttle and steering adjustments per second, so more of the motor's power is translated into ballistic speed and acceleration instead of just flying dirt. The patent-pending AVC system adds a level of performance that simply cannot be found with any vehicle from any manufacturer other than Horizon Hobby. Like traction control in your full-scale vehicle, you can activate or deactivate the system on the fly and adjust the level of stability based on driving conditions. Any RC vehicle can go fast and with AVC you can go faster while maintaining optimum stability in all driving conditions.

    Specs
    Approximate Assembly Time
    No assembly required
    Batteries
    3S-4S LiPo, sold separately
    Battery Dimensions
    t
    Body
    Trimmed and painted
    Brakes
    Integral with ESC
    Bushing Material
    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 Terrain
    Track
    Front and Rear 13.25 in (336.5mm)
    Weight
    Varies with equipment
    Wheel Width
    1.63 in (41.4mm)
    Wheelbase
    14.75 in (374.6mm)
    Parts & Accessories
    Manuals & Support

    Manuals