The BMW R11, a motorcycle that embodies the essence of pre-war engineering, boasts a single carburetor type BMW ∅24 mm. This sleek setup was later replaced with the Amal 6/406 SP and 6/407 SP models in 1933, further refining the machine’s performance.
Its powertrain is driven by a Bosch Magneto generator D2L or Magneto Ignition FF2, delivering a respectable 13.4 kW / 18hp at 3400 rpm. This output increases to 14.9 kW / 20hp at 4400 rpm in 1933, offering a thrilling riding experience.
As you twist the throttle, the BMW R11 comes alive, its engine character defined by a smooth, responsive delivery that’s both captivating and exhilarating.
Key Specifications
Engine Type
Four stroke,two cylinder flat twin, Side valve
Engine Capacity
745 cc / 45.5 cu in.
Max Power
13.4 kw / 18 hp
Fuel Tank Capacity
14 L / 3.7 US gal
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
BMW R 11
Year
1929 – 2034
Engine
Engine Type
Four stroke,two cylinder flat twin, Side valve
Displacement
745 cc / 45.5 cu in.
Bore x Stroke
78 x 78 mm
Compression Ratio
5.5:1
Max Horsepower
13.4 kw / 18 hp
Engine Management System
Single carburetor type BMW ∅24 mm (1933: 1 x carburetor type Amal 6/406 SP and 6/407 SP)
Cooling System
Air cooled
Performance
Top Speed
n/a
*n/a – information not provided by manufacturer
Transmission
Clutch
Single plate dry clutch
Gearbox
3 Speed
Gear Ratios
1st 2.83 / 2nd 1.55 / 3rd 1.08:1
Final Drive
Shaft
Electrical & Electronics System
Starter
Kick
Chassis & Suspension
Frame Type
Twin loop pressed steel frame
Front Suspension
Plate spring 9 laminae
Rear Suspension
Rigid, spring loaded saddle
Wheels & Brakes
Rear Brakes
∅37mm Cardan brake
Dimension & Weights
Fuel Tank Capacity
14 L / 3.7 US gal
Features
Single carburetor type BMW ∅24 mm
Bosch Magneto generator D2L
Magneto Ignition FF2
13.4 kW / 18hp engine output
3400 rpm engine speed
14.9 kW / 20hp engine output (1933 model)
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*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com
