LOS-2310 1/4 Promoto-SM FXR Supermoto Motorcycle RTR (Battery and Charger Included), White

This product is a 1/4 scale Ready-To-Run electric supermoto motorcycle built on Losi’s advanced Promoto platform, designed to deliver one of the most realistic RC riding experiences available. The Promoto-SM FXR Supermoto (White, LOS-2310 / LOS-2310 variant family) is engineered specifically for pavement, asphalt, and smooth hard surfaces, combining a brushless power system with a high-speed internal flywheel that provides gyroscopic stability for true motorcycle-style balance and leaning. It includes Spektrum electronics, realistic rider detail, and a fully RTR package with battery and charger included, making it ready to ride straight out of the box. Compared to the MX version, the SM features street-focused tires, revised lean bars, and stronger braking performance for tighter, more controlled pavement riding.

Losi Promoto-SM FXR Supermoto Motorcycle RTR 1/4 White LOS-2310 (Battery & Charger Included)

Features:

• Official FXR Racing-inspired white supermoto graphics
• 1/4 scale RC electric motorcycle platform
• Spektrum MS6X gyroscopic stabilization system
• Internal steel flywheel spinning over 22,000 RPM for balance
• Spektrum Firma brushless motor system (3800Kv class)
• Spektrum 85A Smart ESC
• Spektrum DX3PM 2.4GHz transmitter included
• Includes 2S LiPo battery and USB-C charger (RTR ready)
• Chain-driven rear wheel with slipper clutch
• Functional cable-driven front disc brake system
• Rising-rate rear suspension tuned for pavement handling
• Updated lean bar system for deeper cornering angles
• Supermoto street tires designed for asphalt grip
• Realistic rider figure with weighted body design
• Hands-free starting and maintenance stands included

Specifications:

• Scale: 1/4
• Drive System: 1WD (rear wheel drive)
• Vehicle Type: Electric Supermoto Motorcycle
• Motor: Spektrum Firma 3652 3800Kv Brushless
• ESC: Spektrum Firma 85A Smart ESC
• Stabilization: Internal flywheel gyroscopic system
• Chassis: Aluminum/composite motorcycle frame
• Suspension: Rising-rate rear suspension
• Brake System: Front cable disc + drivetrain braking
• Length: ~503 mm (19.8 in)
• Width: ~259 mm (10.2 in)
• Height: ~424 mm (16.7 in)
• Wheelbase: ~353 mm (13.9 in)
• Completion Level: RTR (Battery & Charger Included)
• Battery: 2S LiPo included
• Charger: USB-C charger included

What's Included:

• Promoto-SM FXR Supermoto 1/4 RTR Motorcycle (White)
• Spektrum DX3PM transmitter
• 2S 5000mAh Smart LiPo battery
• Spektrum S120 USB-C charger
• Starting stand and display stand
• Instruction manual

Community Feedback:

RC riders consistently describe the Promoto platform as the most realistic motorcycle-style RC system available, especially due to its gyroscopic flywheel stability that allows true leaning and controlled cornering. The SM version is often praised for its improved pavement handling, deeper lean capability, and stronger braking compared to the MX dirt version. Some users note it requires more open space and practice than RC cars, but it rewards skill with a very lifelike riding experience that feels closer to operating a real motorcycle than any other RC platform.