1/4 Promoto-MX Motorcycle RTR with Battery and Charger, Pro Circuit

Overview

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 innovative 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.

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

Standard

Vehicle Type

Motorcycle

Wheel Width

Front - 1.1 in (28mm), Rear - 1.4 in (36.3mm)

Wheelbase

13.9" (353 mm)

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.