BMW R11 Series 1
1929Allround

BMW R11 Series 1

Key specifications

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

Overview

### The Timeless Classic: 1929 BMW R11 Series 1 The 1929 BMW R11 Series 1 stands as a hallmark of early motorcycle engineering, capturing the spirit of adventure and innovation that defined the late 1920s. Positioned in the all-round category, this motorcycle embodies BMW's commitment to quality and performance, making it a favorite among vintage motorcycle collectors and enthusiasts alike. With its striking design and robust capabilities, the R11 not only paved the way for future BMW models but also left an indelible mark on the motorcycle world. At the heart of the R11 Series 1 is a powerful 745cc two-cylinder boxer engine that delivers a respectable 18 HP at 3,400 RPM. This four-stroke marvel offers a top speed of 95 km/h (59 mph), providing riders with a thrilling experience on open roads. The well-balanced bore and stroke of 78 mm each ensures smooth power delivery, while the air-cooled design keeps the engine running efficiently. With a fuel consumption of just 4.5 liters per 100 km, riders can enjoy extended journeys with fewer stops at the pump, making this machine a practical choice for long-distance touring. The three-speed gearbox and shaft drive offer reliable performance and ease of use, allowing both novice and experienced riders to navigate with confidence. The R11 Series 1 is not just about brute force; it boasts a set of features that enhance its riding experience. Its steel double cradle frame provides a sturdy foundation, while the plate spring front suspension offers a comfortable ride over varying terrains. The expanding drum brakes ensure adequate stopping power, with a 200 mm front brake diameter that inspires confidence even at higher speeds. The kick starter adds a touch of vintage charm and authenticity, connecting riders with the rich heritage of motorcycling. With a fuel capacity of 14 liters, the R11 is designed for the long haul, encouraging riders to explore the open road without limits. **

Pros

  • Classic Design and Build Quality: The R11's timeless aesthetics and solid construction make it a standout in any collection.
  • Efficient Fuel Consumption: With a commendable fuel consumption rate, this motorcycle allows for longer rides with fewer refueling stops.
  • Smooth Power Delivery: The boxer engine layout provides a distinctive character and smooth acceleration, appealing to both enthusiasts and casual riders.

Cons

  • Limited Top Speed: While 95 km/h is respectable for its time, it may feel underwhelming for modern riders seeking speed and thrill.
  • Basic Suspension Setup: The rigid rear suspension may not provide the comfort expected by today’s standards, particularly on uneven surfaces.
  • Kick Start Only: The absence of an electric starter might deter some riders looking for convenience, especially in urban settings.

Technical details

Source specification data

Make
BMW
Model
R11 Series 1
Category
Allround
Starter
Kick
Carrying Capacity
210kg
Power
18.00 HP (13.1 kW)) @ 3400 RPM
Clutch
Two plates-dry
Gearbox
3-speed
Ignition
Magneto
Top Speed
95.0 km/h (59.0 mph)
Fuel System
Carburettor. BMW single 24mm
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
4.50 litres/100 km (22.2 km/l or 52.27 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)
Seat
Spring-mounted seat
Rear Tyre
3.25-26.00
Frame Type
Steel-double cradlel
Front Tyre
3.25-26.00
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)