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The Losi® Lasernut U4 1/10-scale 4WD Rock Racer (RR) RTR with Spektrum™ Smart builds on the TEN platform delivering a great out-of-the-box experience to be able to throw down in any 2.2 Unlimited class.
Key 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
Officially-licensed Lasernut Racing Scale Body & Cage
RTR Completion Level is fully assembled and only requires an IC5/EC5 LiPo battery and compatible charger for operation
Includes:
(1) Lasernut U4 4WD Brushless RTR Vehicle
(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 Manual
Needed to Complete:
3S or 4S Hardcase LiPo Battery with IC5/EC5 Connector
3S/4S Compatible LiPo Charger
Protective LiPo Storage/Charging Case
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
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 Smart 130A Brushless ESC and Spektrum 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.
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 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
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
The included scale licensed Raceline 2.2 racing wheels and BFGoodrich KM3 tires featuring an aggressive tread pattern that handles any terrain and good looks while out on any course.
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
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
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
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
For added adjustability and tune-ability, adjustable turnbuckles come standard on the Lasernut U4.
Adjustable Sway Bars
The included sway bars are fully adjustable and help you push the Lasernut U4 to its limits.
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
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
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
Complete metric hardware is featured throughout the Lasernut U4, including bearings, screws and nuts.
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
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 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.
Specifications:
Approximate Assembly Time: No assembly required
Ball Bearings: Full set
Battery: Sold Separately
Body: Trimmed and painted
Brakes: Integral with ESC
Bushing Material: Metal
Charger: Sold Separately
Chassis: 0.12" (3mm) thick 6061 T-6 aluminum
Completion Level: Ready-To-Run
Differential: Sealed viscous filled
Drivetrain: 4WD
Drive Type: Forward/Brake/Reverse
Final Drive Ratio: 12.97:1
Front Track: 13.25" (336mm)
Power Type: Electric
Gear Pitch: MOD1
Ground Clearance: 1.75" (44mm)
Internal Gear Ratio: 3.89:1
Max Battery Dimensions: 5.45 x 1.83 x 1.38" (138.5 x 46.5 x 35mm)
Motor Type: Brushless
Pinion: 12T
Product Height: 8" (203 mm)
Product Length: 24.3" (617 mm)
Product Weight: Varies with equipment
Product Width: 13.25" (337 mm)
Radio: Included
Rear Track: 13.25" (336mm)
Receiver: Included
Scale: 1/10
Servos: Included
Shock Type: Oil-filled aluminum body
Speed Control: Included
Spur Gear: 40T
Suspension: Independent
Technology: Smart
Track: 13.25" (336mm)
Vehicle Type: Rock Racer
Water-Resistant: Yes
Wheelbase: 14.75" (375mm)
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