Fresh styling and key feature updates combine with proven Promoto mechanical and electronic technologies to make the Losi Promoto-SM an RC motorcycle that excels on-road — bringing supermoto looks and performance to the tarmac.
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!
The Promoto-SM lean bar positioning has been updated so it can lean farther than its dirt bike counterpart. New rubber lean bar tires, mounted on bearings, reduce noise and offer better traction on hard surfaces. Adjustable stops are included for up and down travel, so you can dial in the bike for any surface or grip level. The lean bars also often help with crash recovery when the rear tire has traction. If the bike is down on the track, simply hit the throttle to stand it upright and resume driving.
The included Spektrum DX3PM transmitter and SR6300PM receiver combine with patent-pending MS6X technology for unprecedented control. Promoto-SM drivers can maintain balance at high or low speeds while maneuvering over concrete, asphalt, blacktop, and other hard surfaces. For more aggressive driving and extreme cornering angles, use the MS6X knob to increase the lean angle.
The DX3PM has three preprogrammed drive modes that you can toggle between “on the fly” using your thumb on the A/B rocker switch.
How much battery life is left on your bike? You don't have to guess. LED indicators on the DX3PM transmitter show you the remaining capacity of your Spektrum Smart batteries at glance! Using Spektrum Smart Technology, the Promoto-SM stores and shares critical performance data while you run. Smart technology also simplifies battery charging. When you connect a Smart battery to a Spektrum Smart charger, the battery's unique charging requirements upload automatically from its memory microchip through the IC connector's data wire to the Smart charger. Safe charging begins automatically! (You can receive additional telemetry information in real-time, such as speed, RPM, amp draw, ESC temperature, and more, by upgrading to the Spektrum DX5C or DX5 Pro transmitter.)
Although the original Promoto-MX front brake system worked well, the design team thought that improvements could be made. An all-new caliper and floating piston were designed to apply a larger pressure area to the brake pad. Also, a new Metal Injection Molded (MIM) piston shaft is installed on the bearings for smoother operation and a better seal again dust and debris. All of this adds up to a shorter stopping distance and more consistent braking operation.
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-SM to pivot around its center point to improve jumping, changes of direction, and the accuracy of the bike's performance.
With eight pounds rapidly powering down the track, it takes quite a stiff servo saver spring setup to properly guide the Promoto-SM into the next turn. Like anything heavily sprung, the best way to control the strong springs is to dampen the movement. A key development for the Promoto platform is a fluid-filled friction chamber between the upper and lower head tube bearings. The chamber is filled with heavy 500,000cSt which dampens the servo saver well and helps to control any possible "head shake.”
Just like a real bike, the Promoto-SM has a rising rate rear suspension. The suspension starts soft around ride height, for smooth handling and a superior grip. It becomes firmer as it gets deeper into up travel, to provide proper preload on jumps and prevent bottoming out in landings. Dialed in with a full oil-filled coil-over shock, the Promoto-SM is ready to rip over any on-road surface.
and more other specificity
| 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 |
| 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 (3540g) |
| 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) |
Promoto-SM 1/4 Super Moto Motorcycle, FXR, White: RTR RTR with Batter
669,99 €
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