The TXC 449 and TXC 511 are competition/off-road motorcycles from the first generation (2010-2013), specifically the 2011 model year. These motorcycles feature single-cylinder, 4-stroke engines with displacements of 449cc for the TXC 449 and 510.9cc for the TXC 511, both equipped with fuel injection and electronic ignition. They utilize a 6-speed manual transmission with a wet, multi-plate clutch and a chain drive. Known for a long heritage in motorcycle manufacturing, these models are designed for the demands of cross-country and enduro racing. This comprehensive workshop repair service manual, written in English, covers all TXC 449 and TXC 511 models for the 2011 production year, including all engine variants, trim levels, and transmission types. It provides professional-level diagnostic, repair, and maintenance information, featuring detailed step-by-step instructions, troubleshooting guides, wiring diagrams, and enlarged inset diagrams for component identification. The manual's scope includes general information, fuel system, cooling system, engine top end, clutch system, lubrication system, engine removal and installation, crankshaft and transmission, wheels and tires, final drive, brakes, suspension, steering, frame, and electrical system. It is designed to assist owners and independent repair shops in maintaining and repairing their vehicles effectively.