BMW R11 Series 5
1934Allround

BMW R11 Series 5

Key specifications

Engine
745 cc
Power
20 HP
Fuel type
petrol
Fuel capacity
3.7 L
Transmission
3-speed
Front brakes
Expanding brake (drum brake)

Overview

Introducing the 1934 BMW R11 Series 5: A Classic in the Allround Category Step back into the golden age of motorcycling with the 1934 BMW R11 Series 5, a bike that epitomizes the spirit of adventure and engineering excellence of its time. Recognized for its versatility, the R11 Series 5 was designed to cater to a wide audience, providing a perfect blend of performance and comfort. As one of the allround motorcycles in the BMW lineup, it was built to tackle everything from daily commutes to weekend excursions, making it a favorite among enthusiasts and everyday riders alike. The R11’s distinctive styling, characterized by its elegant lines and robust stance, continues to turn heads, evoking nostalgia and admiration for a bygone era. Under the hood, the R11 Series 5 boasts a powerful 745cc two-cylinder boxer engine, delivering nearly 20 horsepower at 4,000 RPM. This impressive output translates into a top speed of 112 km/h (69.6 mph), allowing riders to experience the thrill of the open road with confidence. The engine’s 5.5:1 compression ratio and a 24mm Amal carburettor ensure smooth power delivery and remarkable fuel efficiency, with a consumption rate of just 1.50 litres per 100 km (156.81 mpg). Coupled with a 3-speed gearbox and the reliable shaft drive system, the R11 provides a unique riding experience that combines stability with responsive handling, making it a joy to navigate through both city streets and winding country roads. The 1934 BMW R11 Series 5 is not just about performance; it’s also packed with features that showcase the innovative technology of its time. The steel double cradle frame provides robust support, while the plate spring front suspension offers a surprisingly comfortable ride, absorbing bumps with ease. The expanding drum brakes ensure reliable stopping power, a critical aspect of safety in the pre-war era. With a kickstarter and a fuel capacity of 14 liters, this motorcycle is ready for long journeys, allowing riders to embrace the freedom of the road with minimal interruptions. **

Pros

  • Exceptional Fuel Efficiency: With a remarkable 156.81 mpg, the R11 Series 5 allows riders to travel further without frequent stops at the pump.
  • Iconic Design: Its classic styling and distinctive boxer engine make it a true head-turner among vintage motorcycle enthusiasts.
  • Smooth Handling: The combination of shaft drive and a well-engineered suspension system offers a stable, enjoyable ride across various terrains.

Cons

  • Limited Power Output: While adequate for its time, the 19.99 HP may feel underpowered compared to modern motorcycles, limiting aggressive riding potential.
  • Drum Brakes: The expanding drum brakes, though reliable, may not provide the same stopping power or responsiveness as contemporary disc brakes.
  • Riding Comfort: The rigid rear suspension can lead to a less comfortable ride on bumpy roads, particularly on longer journeys.

Technical details

Source specification data

Make
BMW
Model
R11 Series 5
Category
Allround
Starter
Kick
Power
19.99 HP (14.6 kW)) @ 4000 RPM
Clutch
Two plates-dry
Gearbox
3-speed
Ignition
Magneto
Top Speed
112.0 km/h (69.6 mph)
Fuel System
Carburettor. 24mm Amal
Bore X Stroke
78.0 x 78.0 mm (3.1 x 3.1 inches)
Compression
5.5:1
Displacement
745.00 ccm (45.46 cubic inches)
Cooling System
Air
Engine Details
Two cylinder boxer, four-stroke
Fuel Consumption
1.50 litres/100 km (66.7 km/l or 156.81 mpg)
Greenhouse Gases
O2
g/km. (
O2
-
Carbon
dioxide emission)
Lubrication System
Forced feed
Transmission Type Final Drive
Shaft drive (cardan)
Fuel Capacity
14.00 litres (3.70 gallons)
Overall Width
890 mm (35.0 inches)
Overall Height
940 mm (37.0 inches)
Overall Length
2,100 mm (82.7 inches)
Weight Incl Oil Gas Etc
162.0 kg (357.1 pounds)
Rear Tyre
3.50-26.00
Frame Type
Steel-double cradlel
Front Tyre
3.50-26.00
Front Brakes
Expanding brake (drum brake)
Rear Suspension
Rigid
Front Suspension
Plate springe
Rear Brakes Diameter
55 mm (2.2 inches)
Front Brakes Diameter
200 mm (7.9 inches)