1/4 Losi Promoto-SM FXR Supermoto

1/4 Promoto-SM FXR Supermoto Motorcycle RTR Basic, White Overview

Powering off the line, speeding down straights, and leaning through curves and turns, a unique harmony develops between a bike and its rider. The two intuitively become one. Despite its power, the two-wheeler feels light and nimble as it reacts instantly to your cues - as if it's simply an extension of you.

That's also how it feels to drive Losi Promoto RC bikes.

The Losi Promoto-MX was the first RC dirt bike to accurately reproduce the full experience and pure fun of riding a real motorcycle. Now, for on-road RC and motorcycle fans, Losi presents the Promoto-SM - the most authentic supermoto experience ever offered in a radio-control bike.

The Promoto-SM is particularly well-suited for concrete, asphalt, blacktop, and other hard surfaces found at neighborhood streets, local parks, and parking lots. Key differences from the Promoto-MX include new Pro-Line Racing OE (Original Equipment) SM street tires on smaller wheels, a more powerful front brake caliper, and revised lean bar wheels. The Promoto-SM can lean farther than its dirt bike counterpart, and the lean bar tires decrease noise and offer better traction on hard surfaces.

The Losi Promoto-SM also looks like a true supermoto bike. Its distinctive visual details include hand guards, shortened front fender, and officially licensed FXR graphics and rider gear.

What the Promoto-SM shares with the breakthrough Promoto-MX is an innovative blend of mechanical and electronic technology that work together to provide a realistic experience that no other RC bike can touch. The electronics include a 2700Kv motor and steel flywheel that are both mounted in the center of the frame. The motor spins the flywheel at over 22,000 rpm to create a gyroscopic force for unparalleled stability. Patent-pending Spektrum MS6X technology takes your input from the Spektrum DX3PM transmitter and commands the Promoto-SM to lean, turn, and wheelie with unprecedented balance and finesse.

The mechanical technology is equally impressive. Losi's product development team studied full-size motorcycle suspension geometry to give Promoto RC bikes the same terrain handling characteristics. A rising rate rear suspension provides superior grip and prevents bottoming out in landings. Their completely new front fork design, with an internal spring and dampener, can be tuned by changing the silicone dampening fluid and also allows ride height adjustments. An innovative front and rear wheel braking system adds impressive stopping power, cutting the stopping distance in half compared to rear brake only.

Both technologies, electronic and mechanical, are why the Promoto platform performs better at high and low speeds than any previous RC motorcycle. Now, with the Losi Promoto-SM, there's an RC bike that really works - with tarmac-ready performance and style!

• Fully assembled and ready-to-run — only battery and charger required
• Updated lean bar position and wheels with bearings
• New front brake caliper and piston
• Supermoto-style SM street tires on smaller wheels
• Supermoto front fender and hand guards

1/4 Promoto-SM FXR Supermoto Motorcycle RTR Basic, White Features

• Officially licensed FXR graphics
• Patent-pending Spektrum MS6X technology
• Frame-integrated, high-RPM flywheel
• Rising rate rear suspension
• Powerful brushless system with 40+ mph speeds
• Dirt, Street, and Wheelie Control drive modes
• Collapsible front crash structure
• Realistic rider figure with authentic riding gear
• Functional, cable-driven front disc brake
• Chain drive with dual disc performance slipper clutch
• Hands-free starting stand included
• Keyed bike stand included
• Dirt Mode - Allows the Promoto-SM to pitch up enough without clipping the throttle for going up jump faces and obstacles, but helps prevent “wheelie-overs” by intuitively clipping the throttle output if the bike begins to pitch up too far.
• Street Mode - Senses when the Promoto-SM starts to pitch up and clips the throttle quickly, getting the front tire back on the ground to accelerate as much as possible.
• Wheelie Control - Let 'em rip! Wheelie Control lets you hold wheelies on smooth surfaces all the way to top speed.
• Transmitter (Spektrum DX3PM Smart DSMR)
• Receiver (Spektrum 6-Channel DSMR Promoto Receiver)
• Steering Servo (Spektrum S620PM Metal Gear Servo)
• Front Brake Servo (Spektrum SX108PM Micro Servo)
• Motor (Spektrum Firma 3652 3800Kv 4-Pole Brushless Motor)
• Flywheel Assembly (Spektrum Motorcycle Stator & ESC Assembly / Spektrum Motorcycle Flywheel Assembly)
• Electronic Speed Control (Spektrum Firma 85A Brushless Smart Motorcycle ESC)

1/4 Promoto-SM FXR Supermoto Motorcycle RTR Basic, White Product Specifications

• Approximate Assembly TimeLess than 1 Hour
• Ball BearingsFull Ball Bearings
• BatterySold Separately
• BodyColor Molded Panels with Wrap Graphics
• BrakesFront - Cable Driven Piston/Caliper/Rotor, Rear - Motor Braking
• ChargerSold Separately
• Chassis3mm Aluminum Plate
• Completion LevelReady-To-Run
• Connector TypeIC5
• Drivetrain1WD
• Final Drive Ratio12.0:1
• Gear Pitch32-pitch
• Ground Clearance2.2 in (57mm)
• Inner Tire / Outer Wheel Diameter4.03 / 4.06 in
• Internal Gear Ratio4.8:1
• LiPo Compatibility2S
• Motor Size540
• Motor TypeBrushless
• Pinion20T
• Power TypeElectric
• Product Height16.7" (424 mm)
• Product Length19.8" (503 mm)
• Product Weight129.4 oz (3540g)
• Product Width10.2" (259 mm)
• RadioIncluded
• Scale1/4
• ServosIncluded
• Shock Type16mm Big Bore Aluminum Shock
• Speed ControlIncluded
• Spur Gear50T
• SuspensionFront Fork, Rising Rate Rear Suspension
• Tire Compound35S
• Tire TreadSupermoto S3
• Top Speed40+
• Vehicle SizeStandard
• Vehicle TypeMotorcycle
• Wheel WidthFront - 1.1 in (28mm), Rear - 1.4 in (36.3mm)
• Wheelbase13.9" (353 mm)