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BMW Motorcycles

BMW Motorcycles to 1969

BMW R-11 750cc SV

Production years: 1929-1934
Power: 18CV at 3.400 rpm (series 4)
Capacity: 745cc
Engine: Boxer 4-stroke, side valve
Transmission: Cardan
Maximum speed: 100 Km/h (sans sidecar)
Weight: 162 Kg (sans sidecar)

The BMW R-11 Series 4 was available in 1933
BMW R-11 Series 5 was introduced in 1934

BMW R-12 750cc

Production years: 1935-42
Power: 18 CV at 3.400 rpm
Capacity: 745cc
Engine: Boxer, 4-stroke, sidevalve
Transmission: Cardan
Maximum speed: 110 Km/h
Weight: 185 Kg approx.

BMW R-17 735cc

Production years: 1935-1937
Power: 33 CV at 5000 rpm
Capacity: 735cc
Engine: Boxer 4-stroke, overhead valve
Transmission: Cardan
Maximum speed: 140 Km/h
Units produced: 434
Weight: 183 Kg

In 1935 BMW introduced two models with telescopic forks, the R-12 and the R-17, the first to incorporate shock absorbers. The design has certainly stood the test of time.

HO Twin

Horizontally Opposed Twin

Examples include BMW, Zundapp and Douglas HO Twins have conrods running on a common crank, with one on the exhaust stroke and the other on inlet.
Cardan

Shaft Drive

Examples include BMW, Zundapp and Velocette LE Cardan drive eliminates chain and associated mess and maintenance. Often referred to as a "diff", the final drive unit consists of bevel crown and pinion gears.

BMW R23 250cc OHV Single

Production Years: 1938-1940
Displacement: 247cc
Engine: 4-stroke OHV Type 223/1
Cylinders: 1
Power: 10hp at 5400 rpm
Weight: 135kg
Top speed: 95km/h
Production numbers: 8,021

BMW R35 350cc OHV Single

Production Years: 1937-1940
Capacity: 340cc
Engine: four-stroke OHV, types M69 and 235
Cylinders: 1
Power: 14hp
Weight: 155kg
Number Built: 15,386

BMW R37 1925-1927

The R37 established the BMW racing heritage in its first year of motorcycle racing. Released in 1925, it was the first motorcycle engine to be equipped with aluminium alloy cylinder heads which, combined with overhead valves gave the machine almost twice the horsepower of earlier engines giving the R37 a substantial advantage over the competition.

The R25 absolutely blitzed the racetracks, taking 91 European wins in 1925, 105 in 1926 and a just extraordinary 171 in 1927. BMW R37 riders won the German championship every year from 1925 to 1929.

As indicated by its star status in Munich's amazing BMW museum, it is one of the most famous - and rarest - of all BMW motorcycles.

Image courtesy Moto Talbott Collection

BMW R-4 400cc

Production years: 1932-1937
Power: 14 CV at 4200 rpm
Capacity: 398cc
Engine: single cylinder.
Maximum speed: 100 Km/h
Weight: 137-148 Kg

BMW R-4 Series 2 from 1932

BMW R-4 Series 3 from 1934

BMW R-42 500cc

Production years: 1926-1928
Power: 12 CV at 3400 rpm
Capacity: 494cc
Engine: Boxer 4-stroke, sidevalve
Transmission: Cardan shaft
Maximum speed: 95 Km/h
Units produced: 6,502
Weight: 126 Kg

BMW R-5 494cc OHV Flat Twin

Production years: 1936-1937
Power: 24 CV at 5800 rpm
Capacity: 494cc
Engine: OHV HO twin
Transmission: Cardan
Maximum speed: 135 Km/h
Units produced: 2,652
Weight: 165 Kg

In 1936 BMW introduced a completely new model with considerably more power than its predecessors, achieved by employing two chaindriven camshafts allowing for much shorter pushrods to the overhead valves, with a significant increase in maximum RPM as a result.

The engine was also used after the war, with minor changes, in the R-51/2.

HO Twin

Horizontally Opposed Twin

Examples include BMW, Zundapp and Douglas HO Twins have conrods running on a common crank, with one on the exhaust stroke and the other on inlet.
Cardan

Shaft Drive

Examples include BMW, Zundapp and Velocette LE Cardan drive eliminates chain and associated mess and maintenance. Often referred to as a "diff", the final drive unit consists of bevel crown and pinion gears.

BMW R-50/2

Production years: 1960-1969
Power: 26 CV at 5800 rpm
Capacity: 494cc
Engine: HO Twin, OHV
Transmission: cardan
Maximum speed: 140 Km/h
Weight: 195 Kg solo
Number Produced: 19,036
HO Twin

Horizontally Opposed Twin

Examples include BMW, Zundapp and Douglas HO Twins have conrods running on a common crank, with one on the exhaust stroke and the other on inlet.
Cardan

Shaft Drive

Examples include BMW, Zundapp and Velocette LE Cardan drive eliminates chain and associated mess and maintenance. Often referred to as a "diff", the final drive unit consists of bevel crown and pinion gears.

BMW R-52 500cc

Production years: 1928-1929
Power: 12 CV at 3400 rpm
Capacity: 487cc
Engine: Boxer, 4-stroke, side valve
Transmission: Cardan
Maximum speed: 100 km/h
Units produced: 4377
Weight: 152 kg

BMW R-51 1938

Production years: 1938-1940
Power: 24 CV at 5600 rpm
Capacity: 494cc
Engine: Boxer 4-stroke, overhead valve
Transmission: Cardan
Maximum speed: 140 Km/h
Units produced: 3,775
Weight: 182 Kg

BMW R 51/3

Production Years; 1951-1954
Engine Capacity: 494cc

BMW R 51/2

Production Years: 1950-1952
Engine: Four-stroke HO Twin, Type 254/3
Capacity: 494cc

BMW R-60/2 1960-1969

Power: 30 KW at 5800 rpm
Capacity: 594cc
Engine: air-cooled, four-stroke, boxer twin cylinder, 2 valves per cylinder
Transmission: 4-speed, manual
Suspension: Earles forks front, plunger rear
Weight: 195 Kg (sans sidecar)

BMW R62 1928-1929

Units produced: 4,355
Engine: M56 745cc SV HO Twin
Bore x Stroke: 78 x 78 mm
Power: 18 hp at 3,400 rpm
Compression Ratio: 5.5 : 1
Gears: 3-speed
Electrical System: Bosch magneto, Bosch lighting
Tyres: 26 x 3.5 or 26 x 3.25 front and rear
Fuel Capacity: 12.5 litres
Performance: 115 km/h
Weight: 155 kg wet

Notes: The later R11 is similar but has pressed-metal forks

BMW R-67 1951

Production years: 1951
Power: 26 CV at 5.500 rpm
Capacity: 594cc
Engine: Boxer 4-stroke, overhead valve
Transmission: Cardan
Maximum speed: 145 Km/h
Units produced: 1.470
Weight: 192 Kg

BMW R67/2 600cc

Production Years: 1952-1954

BMW R67/3 1955 600cc

Production Years: 1955
Engine cc: 600
Top Speed: 145 km/h with 28 HP.
Production numbers: 700 units.

BMW R-68 1952-1954

Production years: 1952-1954
Power: 35 CV at 7000 rpm
Capacity: 594cc
Engine: Boxer 4-stroke, overhead valve
Transmission: Cardan
Maximum speed: 160 Km/h
Units produced: 1,452
Weight: 193 Kg.

BMW R69S

Production years: 1960-1969
Power: 42 CV at 7.000 rpm
Capacity: 594cc
Engine: Twin Cylinder, boxer, four stroke
Transmission: Cardan
Maximum speed: 177 Km/h
Weight: 202 Kg wet.

BMW R-75 1941-1944

Produced: 1941-1944
Power: 26hp at 4.000 rpm
Capacity: 750cc
Engine: Boxer, overhead, Four Stroke, Twin Cylinder
Transmission: Cardan
Maximum speed: 95 Km/h
Weight: 420 Kg with sidecar


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Allen Motorcycle Museum
Allen Motorcycle Museum
Private museum in Boston, MA, with many highly collectable vintage motorcycles for sale.