R67

1951 BMW R67 Technical Analysis & Specification Breakdown

Built around BMW's allround motorcycle platform, the 1951 BMW R67 relies on a 594 cc (36.3 cu in) air-cooled two cylinder boxer, four-stroke powerplant. In factory specification, peak output is rated at 26 HP (19 kW) at 5,500 rpm, transferring power to the rear wheel through a 4-speed gearbox and shaft drive (cardan) final drive. With a specific output of 43.8 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the R67 measures 192 kg (423 lbs) wet (curb), translating to a power-to-weight ratio of 0.14 HP/kg (7.38 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,400 mm (55.1 in) wheelbase engineered for quick, flickable steering geometry. The 17-liter (4.5 US gal) fuel tank paired with a rated consumption of 4.6 L/100 km provides an estimated theoretical range of roughly 370 km (230 miles) between fill-ups, while factory top speed is listed at 140 km/h (87 mph).