Losi 1/4 Promoto Sm Fxr Supermoto Motorcycle RTR Basic White is a ready-to-run Promoto-SM built for smooth pavement, parking-lot courses, and supermoto-style riding. It uses brushless rear-wheel drive with the MS6X control system and a high-RPM stabilization flywheel and includes rider figure, rising-rate rear suspension, front disc-brake control, and selectable riding modes. Capable of 40+ mph in the proper setup, it combines authentic leaning and counter-steering with Dirt, Street, and Wheelie-assist modes. The Spektrum Smart brushless system works with a DX3PM transmitter and MS6X technology, which coordinates steering, traction control, wheelie control, and the high-RPM flywheel; manufacturer-rated top speed is 40+ mph. Official dimensions: length 19.8" (503 mm), width 10.2" (259 mm), height 16.7" (424 mm), wheelbase 13.9" (353 mm). Battery: Required (sold separately). Charger: Required (sold separately). Recommended power package (sold separately): 2S LiPo battery with IC5 connector and LiPo balance charger rated for 2S with IC5 charge lead.