Description
LOS-2272
Losi 1/4 Promoto-SM FXR Supermoto RC Motorcycle RTR 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.
Product Details
| Category | Item | Qty |
|---|---|---|
| In The Box | Losi Promoto-SM 1/4 Supermoto Motorcycle RTR FXR | 1 |
| Spektrum Smart DX3PM Transmitter | 1 | |
| AA Transmitter Batteries | 4 | |
| Bike Stand | 1 | |
| Starting Stand | 1 | |
| Product Manual | 1 | |
| Quick Start Guide | 1 | |
| Chain Lube | 1 | |
| Tuning Parts | — | |
| Fork and Shock Tools | — | |
| Needed to Complete | 2S LiPo Battery with IC5 connector and compatible charger |
Product Specifications
| Category | Details |
|---|---|
| Approximate Assembly Time | Less than 1 Hour |
| Ball Bearings | Full Ball Bearings |
| Battery | Sold Separately |
| Body | Color Molded Panels with Wrap Graphics |
| Brakes | Front: Cable Driven Piston/Caliper/Rotor Rear: Motor Braking |
| Charger | Sold Separately |
| Chassis | 3mm Aluminum Plate |
| Completion Level | Ready-To-Run |
| Connector Type | IC5 |
| Drivetrain | 1WD |
| Final Drive Ratio | 12.0:1 |
| Gear Pitch | 32-pitch |
| Ground Clearance | 2.2 in (57mm) |
| Inner Tire / Outer Wheel Diameter | 4.03 / 4.06 in |
| Internal Gear Ratio | 4.8:1 |
| LiPo Compatibility | 2S |
| Motor Size | 540 |
| Motor Type | Brushless |
| Pinion | 20T |
| Power Type | Electric |
| Product Height | 16.7″ (424 mm) |
| Product Length | 19.8″ (503 mm) |
| Product Weight | 129.4 oz (3540 g) |
| Product Width | 10.2″ (259 mm) |
| Radio | 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 |
| Tire Compound | 35S |
| Tire Tread | Supermoto S3 |
| Top Speed | 40+ |
| Vehicle Size | Standard |
| Vehicle Type | Motorcycle |
| Wheel Width | Front: 1.1 in (28mm) Rear: 1.4 in (36.3mm) |
| Wheelbase | 13.9″ (353 mm) |
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