This manual covers the 2015 Sportster XL 883 and XL 1200 series motorcycles, including models such as the XL883R, XL883L, XL883N, XL1200C, XL1200CP, XL1200CA, XL1200CB, XL1200T, XL1200X, and XL1200V. These iconic motorcycles, part of the eighth generation Sportster lineage, feature the air-cooled Evolution V-Twin engine in 883cc and 1200cc configurations, typically paired with Electronic Sequential Port Fuel Injection (ESPFI) and a 5-speed constant mesh transmission with a belt drive. Known for their enduring design, customization potential, and as a gateway into the brand, these models offer accessible performance in the cruiser segment. This comprehensive Service Repair Manual provides detailed procedures for engine disassembly and reassembly, routine maintenance, inspections, diagnostics, troubleshooting, and component replacement for all covered systems, including the engine, fuel system, drive train, chassis, and electrical system. With 748 pages containing service information and wiring diagrams, this English-language manual is designed to assist owners, mechanics, and technicians in maintaining and repairing their 2015 Sportster. It includes in-depth coverage from basic fluid changes to complex rebuilds, with specific guidance on torque specifications, adjustments, and interpretation of detailed wiring and circuit diagrams.