R27

1963 BMW R27 Technical Analysis & Specification Breakdown

Built around BMW's allround motorcycle platform, the 1963 BMW R27 pairs a 247 cc (15.1 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 18 HP (13.1 kW) at 7,400 rpm, transferring power to the rear wheel through a 4-speed gearbox and shaft drive (cardan) final drive. With a specific output of 72.9 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the R27 measures 162 kg (357 lbs) wet (curb), translating to a power-to-weight ratio of 0.11 HP/kg (9 kg per horsepower). Rider ergonomics and chassis geometry center around a 965 mm (38 in) wheelbase engineered for quick, flickable steering geometry. The 15-liter (4 US gal) fuel tank paired with a rated consumption of 3.3 L/100 km provides an estimated theoretical range of roughly 455 km (283 miles) between fill-ups, while factory top speed is listed at 130 km/h (81 mph).

Within MotoLibrary's BMW archive, this model family spans 7 indexed model years from 1960 to 1966, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.