This manual provides comprehensive information for the 2010 SMR450 and SMR510 Supermoto Motorcycles. These models represent a dedication to performance, blending off-road chassis capabilities with road-legal components. Built with a chromium-molybdenum steel trellis frame and powered by robust single-cylinder, 4-stroke engines derived from their TE series, these motorcycles are engineered for spirited riding. The SMR line has a strong lineage within the history of off-road and motocross racing, offering owners a direct connection to the performance heritage. This factory service and repair manual is designed as an essential resource for both owners and factory-trained technicians. It covers a wide array of systems, including general information, fuel, cooling, engine top end, clutch, lubrication, engine removal and installation, crankshaft and transmission, wheels and tires, final drive, brakes, suspension, steering, frame, and the electrical system. The manual details diagnostic, troubleshooting, maintenance, repair, rebuild, and refurbishment procedures, alongside part testing techniques and wiring diagram tracing, ensuring that users have the knowledge to maintain and repair their vehicle effectively.