R6

1937 BMW R6 Technical Analysis & Specification Breakdown

Engineered by BMW for the allround motorcycle segment, the 1937 BMW R6 features a 600 cc (36.6 cu in) air-cooled two cylinder boxer, four-stroke configuration. In factory specification, peak output is rated at 18 HP (13.1 kW) at 4,500 rpm, transferring power to the rear wheel through a 3-speed gearbox and shaft drive (cardan) final drive. With a specific output of 30 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 R6 measures 175 kg (386 lbs) wet (curb), translating to a power-to-weight ratio of 0.1 HP/kg (9.72 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 15-liter (4 US gal) fuel tank paired with a rated consumption of 4.5 L/100 km provides an estimated theoretical range of roughly 333 km (207 miles) between fill-ups, while factory top speed is listed at 125 km/h (78 mph).