The BMW R51/3 was BMW's second post-World War II 500 cc motorcycle, following the briefly produced R51/2. It featured a flat-twin engine and exposed drive shaft. [1] In 1951, the R51/3 succeeded and modernized the 1950 R51/2, which was essentially a pre-war design that was produced after the war.

After nearly seven decades of history, this cherished 1954 BMW R51/3 has been given new life through a meticulous mechanical restoration by MAX BMW's Heritage Service department in New Milford, CT. The bike was purchased by its owner in 1961 and served as a faithful companion through his years at Pace University.

2019年11月23日 · The BMW R 51/3 was a air-cooled, four-stroke, boxer twin cylinder, 2 valves per cylinder Classic motorcycle produced by BMW in 1951. Claimed horsepower was 24.0 HP (17.9 KW) @ 5800 RPM. The roots of BMW are carved in history as quality manufacturers of aircraft engines which began in the early part of the 20th century.

2024年1月6日 · This 1953 BMW R51/3 was acquired by its current owner in 2017 and subsequently refurbished and modified by the seller’s shop, Vintage German Motorcycles of Riverside, California, with work that included fitting a rebuilt R67/2 parallel twin …

2018年2月13日 · Restored from a pile of rusted parts, this 1939 BMW R51 now lives in California. 1939 BMW R51 Engine: 494cc air-cooled OHV opposed-twin, 68mm x 68mm bore and stroke, 6.7:1 compression ratio, 24hp @ 5,500rpm Carburetion: Two 22mm Amal Transmission: 4-speed, shaft final drive Electrics: 6v, magneto w/coil and breaker points ignition Frame ...

2021年8月14日 · This BMW R51, R61, R66, & R71 got away, but there are more like it here. This 1939 BMW R51 was built in June 1939 and delivered to the Netherlands in March 1940, after which it was said to have been acquired in the US in the 1990s as …

It was universally accepted as being one of the best motorcycle engines ever made. This motorcycle has a single spur-gear driven camshaft which operates pushrods that run from the top of the crankshaft. The r51/3 model has no chains in …

BMW R51/3 Motorcycle model years, frame and engine serial numbers, documentation and specifications

BMW R 51/3 is produced in 1951-55. Engine is Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder., displacement 494 cc / 30.1 cu in. , produces power 18 kW / 24 hp @ 5800 rpm.

Based on the prewar BMW R 51 from which it adopted the chassis and the engine, production of the BMW R 51/2 began in 1950. Visually it differed in minor detail, with the rocker covers retained by a clip. Production Years: 1950-1952, c.5000 constructed. 494cc, 24hp @ 5,800rpm, max speed 135 km/h.