BMW R 45 (1983-1984) Specs, Performance & Photos

The BMW R 45 was a mid-range motorcycle produced by BMW from 1978 to 1985. It was powered by a twin-cylinder boxer engine assisted by a five-speed transmission and a shaft final drive.

The bike was available in two engine configurations. The one with 27 hp was the best-selling motorcycle in Germany, and by the time it was revised in 1980, the maker produced over 15,900 units. In addition, by the time it ended production, over 28,150 units were manufactured.

In 1983, the German motorcycle maker released the BMW R 45, which debuted in 1978. It was in its sixth consecutive production year and packed the same specifications as the previous one without significant modifications.

In the aesthetic department, the motorcycle had standard features, such as multi-spoke aluminum wheels, a center stand, a two-into-one exhaust system with a silencer mounted on each side, dual shocks on the rear, a one-piece dual seat, a round headlight, and a front fender mounted close to the wheel.

As for the power figures, the 1983 BMW R 45 delivered an output power of 27 hp at 6,500 rpm and 38 Nm (28 lb-ft) torque at 5,500 rpm from a 453cc four-stroke air-cooled twin-cylinder boxer engine fed by two Bing carburetors.

The bike's front end was controlled by a telescopic fork and a single brake disc, while the rear end was handled by two side-mounted shock absorbers and a drum braking unit.