Losi 1/4 Promoto-MX

An RC motorcycle that looks and performs just like a real dirt bike? It’s not a dream anymore — it’s the Losi Promoto-MX. Innovative mechanical and electronic technologies combine to make this the first RC dirt bike that really works. So let’s ride!

In the Box

Losi Promoto-MX RTR Motorcycle x1
Spektrum Smart DX3PM Transmitter x1
AA Transmitter Batteries x4
Bike Stand x1
Starting Stand x1
1/4 Promoto-MX Motorcycle Manual x1
Quick Start Guide x1
Chain Lube x1
Tuning Parts
Fork and Shock Tools

Needed to Complete

2S 7.4V 5000mAh LiPo with EC5™ or IC5™ Connector x1
Compatible LiPo Charger x1

Features

The best-looking and best-performing RC dirt bike ever made
Innovative, patent-pending Spektrum MS6X technology
Frame-integrated, high-RPM flywheel
Officially licensed FXR Racing graphics and rider gear
Officially licensed Dunlop MX53 tyres
Rising rate rear suspension
Powerful brushless system with 64+ km/h (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
Fully assembled and ready-to-run — only battery and charger required
Dirt Mode — Allows the Promoto-MX 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-MX starts to pitch up and clips the throttle quickly, getting the front tyre 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)

More Information

The Losi Promoto-MX isn’t the first scale RC motorcycle that’s ever been sold. But it is the very first one that accurately reproduces the full experience — and pure fun — of riding a real motorcycle. It’s the long-awaited dream of RC hobbyists and dirt bike fans alike.

The unprecedented realism of the Promoto-MX goes much deeper than its faithfully detailed looks — the narrow frame, rider gear, and officially licensed graphics. Even more impressive is how successfully it captures true dirt bike performance, a breakthrough accomplished through a unique hybrid of mechanical and electronic technology developed specifically for the Promoto-MX. It’s how these technologies work together that makes all the difference.

Promoto-MX electronics include a 2700Kv motor and steel flywheel that are both mounted in the centre of the frame. The motor spins the flywheel at over 22,000 rpm to create a gyroscopic force for unparalleled stability. Meanwhile, patent-pending Spektrum MS6X technology takes your input from the DX3PM transmitter and commands the Promoto-MX to lean, turn, and control wheelies with unprecedented balance and finesse.

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

Both technologies, electronic and mechanical, are why the Promoto-MX performs better at high and low speeds than any previous RC motorcycle. For dirt bike fans, the “feel” of the Promoto-MX will be instantly familiar. RC car enthusiasts will discover a new way to drive that pulls you deep into the heart of the action — carving berms, skimming whoops, holding wheelies, and throwing roost.

Finally. An RC dirt bike that really works! Anytime and anywhere, just grab your Losi Promoto-MX, get in the zone, commit to your line, and begin to be the bike.

Specifications

Approximate Assembly Time Less than 1 Hour
Ball Bearings Full Ball Bearings
Battery Sold Separately
Body Colour Moulded Panels with Wrap Graphics
Brakes Front - Cable Driven Piston/Caliper/Rotor, Rear - Motor Braking
Charger Sold Separately
Chassis 3mm Aluminium Plate
Completion Level Ready-To-Run
Connector Type IC5
Drivetrain 1WD
Final Drive Ratio 12.0:1
Gear Pitch 32-Pitch
Ground Clearance 73 mm (2.9 in)
Internal Gear Ratio 4.8:1
LiPo Compatibility 2S
Motor Size 540
Motor Type Brushless
Pinion 20T
Power Type Electric
Product Height 439 mm (17.3 in)
Product Length 513 mm (20.2 in)
Product Weight 3500 g (123.5 oz)
Product Width 274 mm (10.8 in)
Radio Included
Receiver Included
Scale 1/4
Servos Included
Shock Type 16mm Big Bore Aluminium Shock
Speed Control Included
Spur Gear 50T
Suspension Front Fork, Rising Rate Rear Suspension
Technology AVC and SMART, MS6X
Tyre Compound 65S
Tyre Tread Dunlop Geomax MX53
Top Speed 64+ km/h (40+ mph)
Vehicle Size Standard
Vehicle Type Motorcycle
Wheel Width Front - 28 mm (1.1 in), Rear - 36.3 mm (1.4 in)