LOSI (4)

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! Features Officially licensed FXR graphics Patent-pending Spektrum MS6X technology Frame-integrated, high-RPM flywheel 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 UPDATED LEAN BARS 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. PATENT-PENDING SPEKTRUM MS6X TECHNOLOGY 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. “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-SM 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-SM 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. SMART TECHNOLOGY 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.) UPDATED BRAKE CALIPERS & PISTON 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. 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-SM to pivot around its center point to improve jumping, changes of direction, and the accuracy of the bike's performance. HEAD DAMPING 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.” SERVO SAVER The servo saver's stiff circular springs, captured by bearing-mounted composite plates, provide consistency in steering with enough give to protect the servo. But that's not all. It also drastically improves the bike's performance when setting down from wheelies, landing from jumps, power sliding through a turn, and pushing the front tire over a curb. It gives so the bike stays up. ELECTRONICS INCLUDED 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) NARROW CHASSIS To capture the proper scale looks, the bike's electronics and battery all had to fit within a compact, narrow chassis. Requiring a special “shorty” battery would have made the design task simple, but the Promoto-SM product development team wanted to use a more convenient, standard size battery. Mission accomplished! A full-size 2S hardcase LiPo fits within the rider's seat, easy to access for quick battery changes. Pop in a charged pack and you're back in seconds to leading your competition. REALISTIC RIDER FIGURE The rider figures of other RC motorcycles are made entirely of foam, which quickly fails. Promoto riders have a rubberized plastic exterior that can give and flex under impacts and flips. To keep the rider from bobbling around on the bike, the torso has a foam insert. It keeps the body firm during normal operation but still able to give under impact. With its updated gear, the Promoto-SM rider looks ready for aggressive on-road racing action! PRO-LINE RACING OE (ORIGINAL EQUIPMENT) SUPERMOTO STREET TIRES The Promoto-SM is outfitted with new Pro-Line Racing OE (Original Equipment) Supermoto street tires. In addition to complementing the bike's scale looks, the Supermoto tires are designed specifically for the unique wear and traction requirements of supermoto-style road racing. DISPLAY/MAINTENANCE & STARTING STANDS Working on a real bike is easier with a proper bike stand. So the Promoto-SM had to have one, too! The included stand for maintenance and display is modeled after a real bike stand, complete with graphics. To keep the bike balanced on the stand, the Promoto-SM keys into the bike stand. But taking it a step further, a hands-free starting stand is also included. This starting stand cradles the rear tire and holds the bike upright and ready for a gate-style start. TRUE-SPOKE WHEELS Before Losi introduced the Promoto platform, no other manufacturers had been able to create proper-looking spoked wheels with the durability needed for an RC bike. It took the determination and expertise of the Losi product development team to make it happen. For the Promoto-SM, the realistic, true-spoke wheels are smaller, in keeping with the design of real on-road motorcycles. PLASTICS WITH GRAPHICS Big or small, no street bike would look right without a proper body panel kit wrapped in vinyl graphics. The Promoto-SM has all the goods — fenders, number plate, fork guards, front and rear side panels — all looking fresh wrapped in updated, highly durable vinyl graphics. REALISTIC DETAILS Even tiny touches matter, and Losi hasn't overlooked a thing — exhaust, brake line, foot pegs, brake rotors, you name it. The Promoto-SM also includes hand guards, recreating those used on full-size supermoto bikes to protect the brake and clutch levers during a fall. REAR FENDER Wheelies happen. A normal, rigid-mounted rear fender would really take a beating. But the Promoto-SM has the solution — a hinged elastomer sprung rear fender that can deflect out of the way during wheelies to expose a durable nylon rear bumper. It substantially increases the durability of the rear fender. FRONT CRASH STRUCTURE The front crash structure of the Promoto-SM is rigid during normal running, but compresses until the front tire bottoms into the chassis frame to absorb front impacts. That protects the front fork tubes from bending, keeping them safe and true. SKID PLATES & AIR VENTS Molded composite skid plates line the front and bottom of the Promoto-SM chassis. They offer protection during crashes and keep debris out of the chassis, helping to protect the electronics mounted inside. The air vents on each side of the bike come closed in the box, but can be opened to provide cooling airflow when ambient temperatures are high. TWIN ALUMINUM PLATE CHASSIS Twin aluminum chassis plates house and protect all of the bike's electronics and help to give the Promoto-SM its realistically narrow appearance. They also give the frame the rigidity and durability required for harsh impacts. FRONT FORK The front fork of the Promoto-SM is another Losi innovation with an internal spring and dampener. Designed to work similar to normal RC shocks, the front fork tubes can be rebuilt and tuned by changing the silicone dampening fluid. Using counter-wound upper and lower springs, spacers can be used to adjust the ride height of the Promoto-SM as well. And maybe most importantly, they look awesome — just like the real deal. RISING RATE REAR SUSPENSION 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. BRUSHLESS POWER SYSTEM The Promoto-SM comes out of the gates HOT with a powerful Spektrum Smart brushless power system. Its 4-pole 3652 3800Kv motor puts down the power while the 85A brushless ESC adds all the control you need. With massive 40+ mph top speeds on a 2S LiPo battery, the Promoto-SM power system rips! HEAD ANGLE After months of testing different trail settings, head angle, and steering ratios, the Promoto-SM product development team found the sweet spot. A head tube angle of 62.4 degrees gives it the best balance of bump handling, landing jumps, steering input, and “head shake” control on all surfaces. RACE-INSPIRED SLIPPER CLUTCH As its 3800Kv Spektrum Firma Brushless motor puts out abundant power, the Promoto-SM's race inspired dual disc slipper clutch helps the rear tire maintain traction on a variety of 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. FRONT CABLE-DRIVEN DISC BRAKE Hauling on your bike is a lot more fun when you've got good brakes. The motor can handle rear braking through the drivetrain, but like 1:1 motorcycles, most of the braking happens with the front tire. To slow the Promoto-SM down from the front, the front brake uses a steel rotor, caliper-actuated brake pads, and servo-driven cable. It cuts your stopping distance in half. REALISTIC CHAIN DRIVE We could not call the Promoto-SM a true street racing bike if wasn't chain driven. Steel links and 70 roller pins wrap around a 10-tooth steel drive sprocket and a 36-tooth aluminum hub sprocket. Regardless of conditions, the chain drive will drive the rear tire efficiently and reliably. READY-TO-RUN The Losi Promoto-SM comes fully assembled, with a high-quality Spektrum Smart radio system included and on-board electronics already installed. Even AA transmitter batteries are supplied! Just add a 2S LiPo battery with IC5 plug and a compatible charger and you're ready to ride. Contents (1) Losi Promoto-SM 1/4 Supermoto Motorcycle RTR FXR (1) Spektrum Smart DX3PM Transmitter (4) AA Transmitter Batteries (1) Bike Stand (1) Starting Stand (1) Product Manual (1) Quick Start Guide (1) Chain Lube Tuning Parts Fork and Shock Tools Requires 2S LiPo Battery with IC5 connector and compatible charger

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! 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. 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. 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 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 — only battery and charger required PATENT-PENDING SPEKTRUM MS6X TECHNOLOGY The 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. SMART TECHNOLOGY 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-MX stores and shares critical performance data while you run. Upgrade to the Spektrum DX5C or DX5 Pro to receive additional telemetry information in real-time, such as speed, RPM, amp draw, ESC temperature, and more. 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. LEAN BARS Don't worry if the front tire washes out on loose dirt. The lean bars are ready to catch it. They'll keep the Promoto-MX from going over its maximum lean angle, helping push it back upright to straighten out and exit the turn. The lean bars have adjustable stops for up and down travel, so you can dial in the bike for any surface or grip level. They 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. LEAN BARS Don't worry if the front tire washes out on loose dirt. The lean bars are ready to catch it. They'll keep the Promoto-MX from going over its maximum lean angle, helping push it back upright to straighten out and exit the turn. The lean bars have adjustable stops for up and down travel, so you can dial in the bike for any surface or grip level. They 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. LEAN BARS Don't worry if the front tire washes out on loose dirt. The lean bars are ready to catch it. They'll keep the Promoto-MX from going over its maximum lean angle, helping push it back upright to straighten out and exit the turn. The lean bars have adjustable stops for up and down travel, so you can dial in the bike for any surface or grip level. They 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. SERVO SAVER The servo saver's stiff circular springs, captured by bearing-mounted composite plates, provide consistency in steering with enough give to protect the servo. But that's not all. It also drastically improves the bike's performance when setting down from wheelies, landing from jumps, power sliding through a turn, and pushing the front tire over a rut. It gives so the bike stays up. HEAD DAMPING With 8-pounds rapidly powering down the track, it takes quite a stiff servo saver spring setup to properly guide the Promoto-MX 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-MX 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." ELECTRONICS INCLUDED 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) NARROW CHASSIS To capture the proper scale looks, the bike's electronics and battery all had to fit within a compact, narrow chassis. Requiring a special "shorty" battery would have made the design task simple, but the Promoto-MX product development team wanted to use a more convenient, standard size battery. Mission accomplished! A full-size 2S hardcase LiPo fits within the rider's seat, easy to access for quick battery changes. Pop in a charged pack and you're back to roosting your competition in seconds. REALISTIC RIDER FIGURE Complete with boots, brain bucket, and riding gear, the rider figure is ready for all of the same dirt bike-style action as you — to jump, wheelie, carve berms, and throw roost. The rider figures of other RC motorcycles are made entirely of foam, which quickly fails. The Promoto-MX rider has a rubberized plastic exterior that can give and flex under impacts and flips. To keep the rider from bobbling around on the bike, the torso has a foam insert. It keeps the body firm during normal operation but still able to give under impact. OFFICIALLY LICENSED DUNLOP GEOMAX MX53 TIRES Just as any real dirt bike rider would want, the Promoto-MX comes equipped with the most popular Dunlop dirt bike tire tread, the Geomax MX53. It's officially licensed by Dunlop for scale accuracy and performance. The MX53 delivers on full-scale moto tracks around the world, and it provides high grip and long tire life for the Promoto-MX. TRUE-SPOKE WHEELS Its realistic, true-spoke wheels are another first for the Promoto-MX. No other RC manufacturers have been able to create proper-looking spoked wheels with the durability needed for a dirt bike. It took the determination and expertise of the Losi product development team to make it happen. OFFICIALLY LICENSED FXR RACING GRAPHICS Losi partnered with FXR Racing — a leading manufacturer of helmets, jerseys, pants, and other accessories for full-scale dirt bike enthusiasts — to create the officially licensed graphics for the Promoto-MX. The Promoto-MX looks perfect. It's ready and waiting for the gate to drop. DISPLAY/MAINTENANCE & STARTING STANDS Working on a real dirt bike is easier with a proper bike stand. So the Promoto-MX had to have one, too! The included stand for maintenance and display is modeled after a real bike stand, complete with graphics. To keep the bike balanced on the stand, the Promoto-MX keys into the bike stand. Taking it a step further, a hands-free starting stand is also included. This starting stand cradles the rear tire and holds the bike upright and ready for a gate-style start. PLASTICS WITH GRAPHICS Big or small, no dirt bike would look right without a proper body panel kit wrapped in vinyl graphics. The Promoto-MX has all the goods — front fender, number plate, fork guards, front side panel, rear side panel, and rear fender — all looking fresh wrapped in officially licensed vinyl graphics, but highly durable and ready to get dirty. REALISTIC DETAILS Even tiny touches matter, and Losi hasn't overlooked a thing. Brake and clutch levers, exhaust, brake line, foot pegs, brake rotors, you name it — everything about the Promoto-MX is finely detailed. FRONT CRASH STRUCTURE There's nothing better than sending a huge triple, but what happens if you come up short? Bending a fork leg or tube was not an option, so the Promoto-MX product development team found a solution. The front crash structure is rigid during normal running, but compresses until the front tire bottoms into the chassis frame to absorb those massive front impacts. That protects the front fork tubes from bending, keeping them safe and true. REAR FENDER Wheelies happen. A normal, rigid-mounted rear fender would really take a beating. But the Promoto-MX has the solution — a hinged elastomer sprung rear fender that can deflect out of the way during wheelies to expose a durable nylon rear bumper. It substantially increases the durability of the rear fender. SKID PLATES & AIR VENTS Molded composite skid plates line the front and bottom of the Promoto-MX chassis. They offer protection during crashes and keep roost out of the chassis, helping to protect the electronics mounted inside. The air vents on each side of the bike come closed in the box, but can be opened to provide cooling airflow when ambient temperatures are high. TWIN ALUMINUM PLATE CHASSIS Twin aluminum chassis plates house and protect all of the bike's electronics and help to give the Promoto-MX its realistically narrow appearance. They also give the frame the rigidity and durability required for harsh impacts. RISING RATE REAR SUSPENSION Just like a real dirt bike, the Promoto-MX 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-MX is ready to rip on any surface. FRONT FORK The front fork of the Promoto-MX is a completely new and modern design with an internal spring and dampener. Designed to work similar to normal RC shocks, the front fork tubes can be rebuilt and tuned by changing the silicone dampening fluid. Using counter-wound upper and lower springs, spacers can be used to adjust the ride height of the Promoto-MX as well. And maybe most importantly, they look awesome — just like the real deal. HEAD ANGLE After months of testing different trail settings, head angle, and steering ratios, the Promoto-MX product development team found the sweet spot. A head tube angle of 62.4 degrees gives it the best balance of bump handling, landing jumps, steering input, and "head shake" control on all surfaces. BRUSHLESS POWER SYSTEM The Promoto-MX comes out of the gates HOT with a powerful Spektrum Smart brushless power system. Its 4-pole 3652 3800Kv motor puts down the power while the 85A brushless ESC adds all the control you need. With enough torque to clear large triples — and massive 40+ mph top speeds on a 2S LiPo battery — the Promoto-MX power system rips! FRONT CABLE-DRIVEN DISC BRAKE Hauling on your bike is a lot more fun when you've got good brakes. The motor can handle rear braking through the drivetrain, but like 1:1 motorcycles, most of the braking happens with the front tire. To slow the Promoto-MX down from the front, the front brake uses a steel rotor, caliper-actuated brake pads, and servo-driven cable. It cuts your stopping distance in half — just what you need to catch the next berm. RACE-INSPIRED SLIPPER CLUTCH As 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. REALISTIC CHAIN DRIVE We could not call the Promoto-MX a dirt bike if wasn't chain driven. Steel links and 70 roller pins wrap around a 10-tooth steel drive sprocket and a 36-tooth aluminum hub sprocket. Regardless of conditions, the chain drive will drive the rear tire efficiently and reliably. READY-TO-RUN The Losi Promoto-MX comes fully assembled, with a high-quality Spektrum Smart radio system included and on-board electronics already installed. Even AA transmitter batteries are supplied! Just add a 2S LiPo battery with IC5 plug and a compatible charger and you're ready to ride. Please note: IC3 to IC5 adapters will not fit inside of the Promoto-MX. A LiPo Battery with IC5 or EC5 connector is required. Contents (1) Losi Promoto-MX RTR Motorcycle (1) Spektrum Smart DX3PM Transmitter (4) AA Transmitter Batteries (1) Bike Stand (1) Starting Stand (1) 1/4 Promoto-MX Motorcycle Manual (1) Quick Start Guide (1) Chain Lube Tuning Parts Fork and Shock Tools Requires (1) 2S 7.4V 5000mAh LiPo with EC5™ or IC5™ Connector (1) Compatible LiPo Charger

Ever since introducing the first Mini-T stadium truck in 2003, Losi has been setting the bar higher and higher for mini-size RC racing performance. While growing numbers of Losi mini RC fans honed their skills on makeshift tracks built in their driveways and backyards, Losi kept pushing the limits of what mini RC vehicles can do — adding suspension engineering from the top-of-the-line TLR 22, for example, and installing powerful brushless electronics. It has all led to this, the Losi Mini-B 2WD brushless racing buggy. Versatile, affordable, fast, and fun, the Mini-B makes an excellent starting point for any aspiring RC racer. Straight out of the box, the Mini-B brushless is completely assembled and ready-to-run with everything you'll need to hit the track. Though mini in size, the Mini-B offers the performance capabilities of larger RC racing buggies. Its efficient 2-in-1 brushless motor and ESC system can send it at 30 mph speeds on the back straight, complementing its predictable handling with the power to dive into a corner to make a pass and hit the jumps consistently. The Mini-B offers the durability to withstand crash impacts with other competitors. And with a suspension inspired by the prestigious TLR 22 — a vehicle often seen on the podium at the most competitive 1/10 scale buggy races — the Mini-B handles like a high-end machine, agile in the corners and easy to jump. Many improvements have been made to even small details, and they combine to make a major difference on the track. The transmission case now accepts sway bars. The front bulkhead has been thickened for improved durability. An updated servo saver increases consistency, and updated shock cartridge spacers add smoothness. That's just to name a few. The Mini-B 2WD brushless racing buggy also comes with a high-capacity Spektrum Smart 810mAh 2S LiPo battery and a Smart USB charger for long run times and easy, accurate recharging. Losi has outfitted the Mini-B with Wide Body Rib front tires and Big Shot rear tires — recreations of highly popular Losi treads from the early 2000s. The Mini-B chassis is tunable and option parts are also available, so as your racing experience grows, you'll be able to fine-tune your mini buggy's performance to keep seeing better racing results. Make your move into RC racing today with the Losi Mini-B 2WD brushless racing buggy. Whether at your local track or on a PVC pipe track set up in your basement, it's sure to fire up your competitive spirit. MID-MOTOR CONFIGURATION The mid-motor configuration of the Losi Mini-B 2WD brushless racing buggy creates a well-balanced chassis on high-traction surfaces, allowing for better performance on multiple racing surfaces and also balancing out steering and traction. ALUMINUM CHASSIS The Mini-B has been designed with a 1.5mm thick, 6061-T6 aluminum chassis plate that provides strength and durability along with rigidity that vastly improves racing performance. THREADED OIL-FILLED SHOCKS The injection-molded oil shocks have threaded shock collars that allow for easy preload and ride height adjustments to quickly adjust to the track after your warm up laps. The shock bodies also feature a bottom-loading, rebuildable shock cartridge with dual O-rings that help to keep the oil in the shocks. As an option, the shocks can be tuned using different spring rates and TLR shock oil weights available separately. SPEKTRUM SMART G2 2S LIPO BATTERY The included 7.4V 810mAh 2S Smart G2 50C LiPo battery not only offers high capacity for long run times, but also stores its charging parameters on an integrated microchip. That data uploads to the included Smart charger automatically when the battery is connected. Safe, accurate charging begins immediately. SPEKTRUM SMART G2 USB-C LIPO BATTERY CHARGER Using innovative Spektrum Smart technology, the included 2S LiPo battery communicates automatically with the supplied Smart USB charger the moment you plug it in. You don't have to worry about making the correct charge settings — it's done for you. Charging is convenient, safe, and easy! RACE-PROVEN TIRES The tires included with the Mini-B 2WD brushless racing buggy recreate Losi's popular Big Shot rear tires and Wide Body Rib front tires from the early 2000s. METAL GEAR TRANSMISSION The metal gear transmission is engineered to handle the massive power output of the Mini-B's brushless motor system. All of the gears are ball bearing supported for a smooth, efficient transmission. FULL BALL BEARINGS The entire vehicle is equipped with ball bearings for maximum smoothness and efficiency — a must-have for racing! (Less steering.) SPEKTRUM SX108 SERVO WITH SERVO SAVER The Spektrum SX108 steering servo turns the Mini-B tires with over 40 oz-in of torque. Its servo saver gives a consistent feel to the steering while protecting the servo from sudden jolts caused by bumping with other vehicles on the track. SPEKTRUM SLT2 2.4GHz RADIO In addition to providing interference-free control, the included Spektrum SLT2 2.4GHz transmitter offers many useful features including steering trim, steering rate, and steering reversing. With its throttle limiting switch, beginners can limit their access to the buggy's full speed potential from 50% to 75% to 100% — perfect for learning RC control skills gradually and safely. SPEKTRUM SR315 RECEIVER The Spektrum SR315 3-Channel Dual Protocol receiver delivers superb range and response with a solid 2.4GHz link. It has an extra port for racing transponders and accommodates upgrades to higher-performance Spektrum transmitters without the need for a new receiver. OPTION PARTS Competing, customizing, upgrading — you can do it all, RC style, with the Losi Mini-B 2WD. A full line of option parts is available for making this racing buggy all your own. REFINED DESIGN Small improvements make a big difference at the track! After studying the Mini-B and listening to racers, Losi engineers found many ways to refine its design. The shock cup height has been adjusted to keep the spring secure. A bearing spacer added in the rear hub lets you tighten the rear wheel with confidence. A new ball cup material provides better function and durability. The transmission case accepts sway bars, and the front bulkhead has been thickened to increase strength. The new slipper plate offers a more consistent feel under brushless power, and the servo saver increases consistency while making the steering feel more direct. Features Brushless powered Fully ready-to-run Track-ready with refined features Mid-motor chassis configuration Strong aluminum chassis Threaded oil-filled shocks Spektrum 2-in-1 brushless motor/ESC system High-capacity Spektrum Smart G2 810mAh 2S LiPo battery Spektrum Smart G2 2S LiPo USB-C battery charger Metal gear transmission Big Shot rear tires and Wide Body Rib front tires Full ball bearings (less steering) Spektrum SLT2 2.4GHz radio and SR315 receiver Spektrum SX108 Micro Digital Metal Gear Servo Option parts available Includes (1) 1/16 Losi Mini-B 2WD Brushless Racing Buggy RTR (1) Spektrum SLT2 2.4GHz Transmitter (1) Spektrum SR315 2.4GHz Dual Protocol Receiver (1) Spektrum SX108 Steering Servo (1) Spektrum FIRMA 6000Kv Brushless Motor & ESC 2-in-1 Combo (1) Spektrum Smart G2 2S LiPo Battery (1) Spektrum Smart G2 2S LiPo USB-C Battery Charger (4) AA Transmitter Batteries (1) Mini-B 2WD Brushless Product Manual Requires USB Power Adapter with QC 2.0/3.0 18W+  

Losi introduced its first RC micro vehicle nearly two decades ago. It was easy on the wallet and small enough to carry in a coat pocket. The low cost and convenience — combined with exciting, hobby-quality performance — took the RC industry by storm. Many hobbyists have fond memories of the Losi micros. They want them back again. You asked and Losi answers with the 1/24 scale, ready-to-run Micro-B 2WD buggy. It's the simplest way yet to share your passion for fast, fun RC racing with friends and family. Only slightly larger than the original Losi micro, the Micro-B 2WD buggy is even faster and more capable. And you can still run it almost anywhere. The typical living room makes a suitable spot for spur-of-the-moment racing. Low-shag carpeting provides excellent traction for carefree indoor micro competition. You can also race the Micro-B outdoors on driveways and other smooth concrete surfaces. With its TLR-inspired design, Losi takes the Micro-B to the next level of micro performance. It doesn't just look like the buggy that won the 2023 IFMAR World Championships. It has the goods to back it up. Adjustable and tunable oil-filled shocks optimize handling and soak up bumps and jumps. The black-anodized aluminum chassis is strong, rigid, and an industry first. The batteries included with most ready-to-run vehicles offer about eight minutes of uninterrupted run time per charge. Losi more than doubles your fun with the Micro-B. Its 350mAh LiPo battery stretches run times to nearly 20 minutes. Then, when it's time for a recharge, the easy-to-use USB-C charger gets it done in less than an hour, compared to the 2-5 hours most standard RTR chargers require. Longer run times are great. Higher speeds are even better, and the 13+ mph top speed capability of the Losi Micro-B might seem absolutely insane for a buggy of this size. If you're not sure you're ready to handle it, however, think again. The included Spektrum SLT2 transmitter has a switch to cap the speed at 50% or 75% of the maximum until you're ready to unleash it all. This throttle limiting feature is perfect for young or inexperienced drivers. The Losi Micro-B lets everyone enjoy the fun and challenges of RC racing without requiring lots of time, money, and space. In fact, at this price, you can own more than one — and be ready to go racing with your friends and family anytime and anywhere! This Is Where The Fun Starts It's not easy to be a World Champion RC racer. Those top-level drivers earn their trophies through hard work, endless practice, and cars loaded with well-chosen, high-dollar upgrades. But if you want to have fun racing RC cars, that's pretty simple. All you need is a fast, sturdy, easy-to-run vehicle and a place to race it with your friends. All you need is the Losi Micro-B 2WD buggy. The Micro-B won't cost you a lot of money. It's ready-to-run, so you won't have to search for the right accessories. You don't need a large or special track. Just open the box, charge the battery, and start racing almost anywhere — even in your living room. Complete RC racing excitement is captured here in micro size. World Champion racing buggy looks. Fast, 13+ mph top speeds. Tough construction that survives bumps and jumps. Adjustment and tuning capabilities that turn your growing experience into stronger performance. Best of all, you don't have to wait. Start racing now with the Losi Micro-B. Features Design inspired by championship-winning TLR buggy Strong, rigid, black-anodized aluminum chassis Adjustable oil-filled shocks Fully proportional electronics Spektrum SLT2 2.4GHz radio Powerful Spektrum 350mAh LiPo battery Convenient and easy-to-use USB-C charger Pro-Line Racing body, wheels, and tires OIL-FILLED SHOCKS Losi has taken micros to the next level with the Micro-B. It not only looks like buggy that won the 2023 IFMAR World Championships, but includes oil-filled shocks for optimal handling and jumping during racing. The shocks can be tuned with optional shock fluid and springs and adjusted with the included pre-load clips. BLACK-ANODIZED ALUMINUM CHASSIS The Micro-B buggy's next-level aluminum chassis is an RC industry first for micro vehicles. Inspired by the championship-winning TLR racing buggy, the Micro-B chassis includes front caster kick and side bends to create a strong and rigid foundation. 13+ MPH WITH ROOKIE MODE For a vehicle of its size, the Micro-B's 13+ mph top speed is outrageous! A throttle limiting switch on the back of the SLT2 transmitter lets you put the buggy in “rookie mode,” limiting speeds to 50% or 75% of its full potential — perfect for learning RC control skills gradually and safely. It's great for sharing the fun with younger, less experienced drivers, knowing they'll be able to stay in control. SPEKTRUM SLT2 2.4GHz RADIO Race with an unlimited number of other drivers and never worry about signal conflicts, thanks to the interference-resistant 2.4GHz technology of the Spektrum SLT2 radio. Adjustments on the transmitter let you fine-tune steering control to suit your individual racing style. FULLY PROPORTIONAL ELECTRONICS The included electronics deliver fully proportional control, which means that your slightest input on the transmitter is immediately reflected in your Micro-B buggy's speed and steering. That responsiveness keeps you 100% in control on the race track. FULLY READY-TO-RUN Everything you need to race is included in the box along with your fully assembled and finished Micro-B buggy. No additional items are required. Just read the manual as you charge the battery and you'll be ready to compete in less than an hour. BATTERY & CHARGER INCLUDED The 350mAh LiPo battery included with the Micro-B provides over 20 minutes of run time on a full charge — compared to the eight minutes you get with most RTR models. Recharging the battery takes less than an hour using the included .5 amp USB-C charger. PRO-LINE OE (ORIGINAL EQUIPMENT) BODY Pro-Line Racing bodies are found on many larger RC buggies that compete and win around the world. You can be proud that your Micro-B is also topped off with a factory-finished Pro-Line body, even though you're racing with friends indoors or outdoors at home! PRO-LINE RACING OE (ORIGINAL EQUIPMENT) COMPONENTS The included Pro-Line Racing body, wheels and tires are exact same design found on racetracks around the world — another example of what makes the Losi Micro-B one of the best micro RC buggies available! MICRO-B OPTION PARTS Competing, customizing, upgrading — you can do it all, RC style, with the Losi Micro-B. A full line of option parts is available for making this racing buggy all your own. Contents (1) Losi 1/24 Micro-B 2WD Buggy (1) Spektrum 7.4V 350mAh 2S 30C LiPo Battery (1) Spektrum USB-C Charger (1) Spektrum SLT 2-in-1 ESC & Receiver (1) Losi 65T Brushed Motor (1) Spektrum 2.4GHz SLT2 Transmitter (1) AS-1 Micro Servo (4) AA Transmitter Batteries Misc. Tools (1) Instruction Manual Requires Nothing else needed (Though not required, the Spektrum 65W USB-C GaN Power Supply SPMX-1027 is recommended)