LOS04019 Super Lasernut 4WD 1/6 Scale U4 Rock Racer RTR

This product is a 1/6 scale Ready-To-Run Ultra4-style rock racer built on Losi’s large-scale Lasernut platform, designed to deliver high-speed desert racing performance combined with extreme off-road durability and scale realism. The Super Lasernut U4 replicates Cody Waggoner’s full-size Lasernut race vehicle and is engineered for mixed-terrain driving, including desert, dirt, rocks, and wide open off-road areas. It uses a 6S-capable brushless power system paired with a heavy-duty 4WD drivetrain and independent suspension derived from TLR racing platforms, giving it both speed and stability at high velocity. With its Spektrum electronics, full LED lighting, and detailed roll cage design, it blends competition-level performance with highly detailed scale styling.

Features:

• Officially licensed Lasernut U4 Ultra4 race replica body and cage
• 1/6 scale large-format rock racer platform
• Full-time 4WD drivetrain with metal gear transmission
• Spektrum Firma 150A Smart V2 ESC (6S capable system)
• Spektrum Firma 4074 2050Kv brushless motor
• Spektrum DX3 2.4GHz Smart transmitter included
• Independent suspension based on TLR 8IGHT racing geometry
• Aluminum chassis for extreme durability and rigidity
• Adjustable oil-filled shocks and sway bars
• Sealed front, center, and rear differentials for tuning capability
• Full LED lighting system (front, rear, and pods)
• Functional scale roll cage with flip-up access design
• Licensed Raceline wheels and BFGoodrich-style tires
• Waterproof electronics for all-weather running
• Designed for desert, rock, and high-speed open terrain

Specifications:

• Scale: 1/6
• Drive System: 4WD
• Vehicle Type: Ultra4 Rock Racer / Desert Buggy
• Motor: Spektrum Firma 4074 2050Kv Brushless
• ESC: Spektrum Firma 150A Smart V2 (6S capable)
• Chassis: 3mm aluminum plate with upper deck
• Suspension: Independent race-style suspension
• Differential: Sealed gear (front, center, rear)
• Wheelbase: 18.9 in (480 mm) approx.
• Length: 30 in (762 mm)
• Width: 17 in (432 mm)
• Weight: ~18.5 lb (8391 g)
• Completion Level: RTR
• Battery: 3S–6S LiPo compatible (not included)
• Charger: Not included
• Top Speed: 50+ mph (higher on 6S setups)

What's Included:

• 1/6 Losi Super Lasernut U4 RTR Rock Racer
• Spektrum DX3 2.4GHz Transmitter
• Spektrum SR315 Receiver
• Spektrum Firma 4074 brushless motor (installed)
• Spektrum Firma 150A Smart ESC (installed)
• Spektrum steering servo (installed)
• Instruction manual

Community Feedback:

RC enthusiasts often describe the Super Lasernut as one of the most ambitious large-scale RC rock racers, especially for its combination of scale realism and high-speed capability. Owners praise its stability at speed and its ability to handle rough desert terrain with confidence thanks to its long-travel suspension and heavy-duty drivetrain. Some users note it is large and requires ample space to run properly, but it is widely regarded as a flagship “adventure RC” platform that blends racing performance with scale Ultra4 authenticity.