BMW R850C / R1200C Service Manual (1999)

BMW entered the modern cruiser market with the R1200C, announced in 1997 and launched that autumn as the company's first purpose-built cruiser. BMW's official retrospective explains that the project deliberately avoided copying established American V-twin formulas. Instead, BMW built the motorcycle around its own flat-twin identity, a bespoke frame, visibly engineered Telelever front suspension and a lengthened Monolever shaft-drive rear end. The result was a cruiser with unmistakably BMW mechanical architecture, low-slung proportions and a strong emphasis on exposed functional design.

The smaller R850C joined the family in spring 1999. BMW's cruiser-range history records that timing and also shows how quickly the line diversified: the original 1200 became the Classic, Avantgarde versions followed in autumn 1999, and later Phoenix, Montana, Independent, CL and Montauk variants broadened the same basic idea. The 850 provided a lower-capacity entry into the family while retaining the long-wheelbase chassis, Boxer character and distinctive styling vocabulary of the larger machine.

The two models share the same longitudinal four-valve flat-twin layout but use different capacities and tuning. The 848 cm³ version has an 87.5 × 70.5 mm bore and stroke, 10.3:1 compression, 37 kW (50 hp) at 5,250 rpm and 71 N·m at 4,750 rpm. The 1,170 cm³ version uses 101 × 73 mm dimensions, 10.0:1 compression, 45 kW (61 hp) at 5,000 rpm and 98 N·m at 3,000 rpm. Both employ Motronic MA 2.4 electronic fuel injection, a hydraulically operated single dry-plate clutch and a five-speed gearbox. Final-drive gearing differs, with 2.75:1 on the 850 and 2.54:1 on the 1200, reflecting their different torque characteristics.

The chassis is a defining part of this air/oil-cooled Boxer cruiser platform. BMW used Telelever front suspension with 144 mm of travel and a reinforced single-sided Monolever rear system with enclosed shaft drive. The unusual combination allowed a long, low cruiser stance without abandoning BMW's established engineering solutions. The family continued to evolve technically as well as stylistically. For model year 2004 BMW introduced twin-spark ignition, revised five-speed gearboxes and upgraded braking across the 1200 cruiser range. At INTERMOT 2004 BMW stated that the R 1200 C/CL family was entering its final model year and would have no direct successor in the next generation; BMW would not return to the cruiser segment until the later R 18 era.

This listing is based specifically on BMW Repair Manual order number 01 50 7 654 051, printed in Germany 3/99, with an included maintenance schedule dated 06/99. It covers both models and contains scheduled maintenance, complete internal engine rebuilding, Motronic fuel injection, clutch, full five-speed gearbox overhaul and shimming, Telelever suspension, shaft rear drive, brakes/ABS, frame and electrical systems. Because the publication provides no model-year applicability table proving compatibility with later revisions, catalog coverage is conservatively limited to 1999. Related documents are grouped in the BMW R850C category and BMW R1200C category.