The BMW R1100S was a sports or sports-touring motorcycle made by BMW from 1998 until 2005, when it was replaced by the BMW R1200S. It was introduced 25 years after BMW's first sports bike, the R90S, and was the first BMW motorcycle that featured a clip-on handlebar, rear set footrests, and a removable passenger seat cover.
In 2003, a more expensive version of the S1100S with more track capabilities was introduced under the BMW R1100S Boxer Cup Replica (BCR) designations, featuring several tweaks and improvements compared to the standard model.
Some modifications included the twin Laser under-seat exhausts mufflers, braided brake lines, a carbon fiber oil-catcher belly pan, carbon fiber cylinder head protectors, Ohlins suspensions, and a shorter Paralever torque arm that raised the rear end and increased cornering clearance.
In addition, the special edition motorcycle featured a special, three-tone paint job and a standard engine management chip, which was swapped at the first dealership with a modified one. Even with the modified one, the bike delivered the same power as the standard or Sport versions.
As for performance, the 2003 BMW R1100S Boxer Cup Replica had its heartbeat set by a 1,085cc four-stroke air/oil-cooled twin-cylinder boxer engine mounted underneath its fuel tank, boasting 98 hp at 7,500 rpm and 98 Nm (72 lb-ft) torque at 5,750 rpm.