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 center 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 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 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.
PATENT-PENDING SPEKTRUM MS6X TECHNOLOGYThe upgraded Spektrum DX3PM transmitter and SR6300PM receiver combine with patent-pending MS6X technology for unprecedented control. Promoto-MX drivers can maintain balance at high or low speeds and over jumps and whoops, then give simple steering inputs to carve around tight berms and straighten up heading into the next rhythm section. For more aggressive driving, use the MS6X knob to increase the lean angle.
"ON THE FLY" DRIVE MODES
The DX3PM has three preprogrammed drive modes that you can toggle between "on the fly" using your thumb on the A/B rocker switch.
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 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.
FLYWHEEL UNIT
The gyroscopic stabilization force created by its heavy steel flywheel — spinning at over 22,000 rpm with the 2700Kv motor — does wonders for the motorcycle's stability. Mounted as low and as far forward as possible in the frame, the flywheel unit enables the Promoto-MX to pivot around its center point to improve jumping, changes of direction, and the accuracy of the bike's performance.
RACE-INSPIRED SLIPPER CLUTCHAs its 3800Kv Firma Brushless motor puts out abundant power, the Promoto-MX's race inspired dual disc slipper clutch helps the Dunlop Geomax MX35 rear tire keep traction on loose surfaces. The dual pad, spring pressurized slipper clutch takes inspiration from those that the TLR team uses to win races across the globe. It increases traction and protects the drivetrain without sacrificing explosive drive.
Features:
The best-looking and best-performing RC dirt bike ever made
New, patent-pending Spektrum MS6X technology
Frame-integrated, high-RPM flywheel
Officially licensed Pro Circuit graphics and rider gear
Officially licensed Dunlop MX53 tires
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
Fully assembled and ready-to-run — battery and charger included
Includes:
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)
Battery (Spektrum 5000mAh 2S 7.4V Smart G2 50C LiPo Battery with IC5 Connector)
Charger (Spektrum Smart S120 USB-C Charger, 1x20W) with IC3 / IC5 adapter
Specifications:
Approximate Assembly Time: Less than 1 Hour
Ball Bearings: Full Ball Bearings
Battery: Included
Body: Color Molded Panels with Wrap Graphics
Brakes: Front - Cable Driven Piston/Caliper/Rotor, Rear - Motor Braking
Charger: Included
Chassis: 3mm Aluminum Plate
Completion Level: Ready-To-Run
Connector Type: IC5
Drivetrain: 1WD
Final Drive Ratio: 12.0:1
Gear Pitch: 32-Pitch
Internal Gear Ratio: 4.8:1
Motor Size: 540
Motor Type: Brushless
Pinion: 20T
Power Type: Electric
Product Height: 17.3" (439 mm)
Product Length: 20.2" (513 mm)
Product Weight: 123.5 oz (3500g)
Product Width: 10.8" (274 mm)
Radio: Included
Receiver: Included
Scale: 1/4
Servos: Included
Shock Type: 16mm Big Bore Aluminum Shock
Speed Control: Included
Spur Gear: 50T
Suspension: Front Fork, Rising Rate Rear Suspension
Technology : AVC and SMART, MS6X
Tire Compound: 65S
Tire Tread: Dunlop Geomax MX53
Vehicle Size: 1/4 Scale
Vehicle Type: Motorcycle
Wheel Width: Front - 1.1 in (28mm), Rear - 1.4 in (36.3mm)
Wheelbase: 13.9" (353 mm)
