BMW K100 RS (1990-1991) Specs, Performance & Photos

In 1990, The German motorcycle manufacturer released the BMW K100 RS, a sports touring machine, in its eighth consecutive production year. Compared to the base K100 model, the RS version featured a fixed sports fairing and a lower handlebar.

The 1990 model came with the same package as the 1989 motorcycle, delivering the same visual, technical, and performance specifications without any significant modifications whatsoever.

The latest updates and improvements were made on the 1989 model, which included a revised engine with more valves per cylinder, a new dual seat, a new handlebar, new footpeg brackets, lightened pistons, a new Bosch Motronic, new spacers between the fairing and mirrors, a new shifter chassis, a new latch design for the optional saddlebags, and more.

In the aesthetic department, the 1990 model had standard fittings, like eight-spoke aluminum alloy wheels, a four-into-one exhaust system with a silencer mounted on the left-hand side, an engine cover, a one-piece dual seat, a windscreen, and a half fairing with a single headlight unit.

In terms of power, the 1990 BMW K100 RS took its muscles from a 987cc four-stroke liquid-cooled four-cylinder engine mounted at its core, boasting 95 hp with a peak force at 7,500 rpm and 85 Nm (63 lb-ft) torque at 6,000 rpm.

As for the braking power, the motorcycle's wheels were fitted with two 285 mm brake discs and a dual-piston caliper on the front and a 285 mm brake disc with a single-piston caliper on the rear.