BMW R71 1939 - Specifications & Review

R71

Article Complete Info

Articleid31269
CategoryCustom-cruiser
MakeBMW
ModelR71
Year1939

Chassis, Suspension, Brakes & Wheels

FrametypeTubular steal duplex cradle
FrontbrakesExpanding brake (drum brake). Single
Frontbrakesdiameter200 mm (7.9 inches)
FrontsuspensionCartridge
Fronttyre3.5-19
RearbrakesExpanding brake (drum brake)
Rearbrakesdiameter200 mm (7.9 inches)
RearsuspensionTwin shock-Swingarm
Reartyre3.5-19
SeatSingle seat
WheelsSpoked

Engine & Transmission

Borexstroke78.0 x 78.0 mm (3.1 x 3.1 inches)
ClutchDry-single plate-cable operated
Compression5.5:1
CoolingsystemAir
Displacement746.00 ccm (45.52 cubic inches)
EnginedetailsTwo cylinder boxer, four-stroke
Fuelconsumption4.50 litres/100 km (22.2 km/l or 52.27 mpg)
FuelsystemCarburettor. Graetzin G24
Gearbox4-speed
Greenhousegases104.4 CO2 g/km. (CO2 - Carbon dioxide emission)
LubricationsystemWet sump
Power22.03 HP (16.1 kW)) @ 4600 RPM
Topspeed125.0 km/h (77.7 mph)
TransmissiontypefinaldriveShaft drive (cardan)

Other Specifications

StarterKick

Physical Measures & Capacities

Fuelcapacity14.00 litres (3.70 gallons)
Overallheight960 mm (37.8 inches)
Overalllength2,130 mm (83.9 inches)
Overallwidth815 mm (32.1 inches)
Weightincloilgasetc187.0 kg (412.3 pounds)

About BMW R71 1939

1939 BMW R71: A Timeless Classic in Custom-Cruiser Design

The 1939 BMW R71 is an iconic motorcycle that embodies the essence of pre-war German engineering, combining classic aesthetics with robust performance. Positioned as a custom-cruiser, the R71 was designed for riders seeking both style and substance. With its distinctive lines and vintage charm, the R71 has garnered a loyal following among enthusiasts and collectors alike. Its historical significance is underscored by its influence on subsequent models, including the famed BMW R75, which was developed during World War II. The R71 is not just a motorcycle; it's a piece of history that resonates with the spirit of freedom and adventure.

At the heart of the R71 lies a powerful two-cylinder boxer engine with a displacement of 746 cc. Producing 22.03 horsepower at 4,600 RPM, this air-cooled, four-stroke powerplant delivers a delightful riding experience. Riders can expect a top speed of 125 km/h (77.7 mph), making it more than capable of cruising on open roads. The engine's design, featuring a balanced bore and stroke of 78 mm, contributes to its smooth and reliable performance. The 4-speed gearbox and shaft drive system not only enhance the riding experience but also ensure exceptional torque delivery. With a fuel consumption rate of just 4.50 liters per 100 kilometers (52.27 mpg), the R71 offers a commendable range for long-distance rides.

The R71's chassis and suspension are a testament to BMW's commitment to quality and comfort. It features a tubular steel duplex cradle frame that provides both rigidity and agility, complemented by cartridge front suspension and a twin shock-swingarm setup at the rear. The motorcycle is equipped with 200 mm drum brakes on both the front and rear, ensuring reliable stopping power. With a weight of 187 kg (412.3 pounds), the R71 strikes a balance between stability and maneuverability. Riders will appreciate the generous 14-liter fuel capacity, which allows for extended journeys without the constant need to refuel. Adding to its old-world charm, the R71 employs a kick starter, inviting riders to engage with their machine in a more hands-on manner.

#### Pros and Cons of the 1939 BMW R71

Pros:

  1. Classic Design: The R71’s vintage aesthetics appeal to classic motorcycle enthusiasts, making it a standout in any collection.
  2. Reliable Performance: With a capable boxer engine and smooth power delivery, this motorcycle offers a satisfying ride, whether for leisurely cruises or spirited outings.
  3. Comfortable Ride: The thoughtful suspension setup and ergonomic design provide a comfortable riding experience over long distances.

Cons:

  1. Limited Top Speed: While adequate for cruising, the top speed of 125 km/h may not satisfy those looking for high-performance thrills.
  2. Kick Starter Only: The absence of an electric starter might deter some riders who prefer modern conveniences, especially in challenging conditions.
  3. Weight: At 187 kg, the R71 may feel cumbersome for some riders, particularly during slow-speed maneuvers or in tight spaces.

In summary, the 1939 BMW R71 is a remarkable motorcycle that combines classic design with solid performance, making it a cherished choice for enthusiasts and collectors alike. Its history, engineering, and riding characteristics create a unique blend of nostalgia and joy that continues to captivate motorcycle lovers today.

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