BMW R71
Key specifications
Overview
### Discover the 1938 BMW R71: A Classic Custom Cruiser The 1938 BMW R71 stands as a remarkable piece of motorcycle history, embodying the spirit of pre-war engineering and design. Positioned as a custom cruiser, the R71 appealed to a generation of riders who sought both performance and elegance on two wheels. With its iconic boxer engine and robust build, the R71 catered to enthusiasts looking for a blend of reliability and classic aesthetics, making it a sought-after model among collectors and vintage motorcycle aficionados alike. At the heart of the R71 lies a 746cc two-cylinder boxer engine that delivers a modest but spirited 22.03 horsepower at 4600 RPM. This four-stroke powerhouse ensures a top speed of 125 km/h (77.7 mph), offering a smooth and enjoyable ride for both urban jaunts and country road adventures. The air-cooled engine, paired with a 4-speed gearbox and a shaft drive, provides a uniquely engaging riding experience characterized by its low-end torque and responsive throttle. Riders will appreciate the R71's efficient fuel consumption of 4.5 liters per 100 km (52.27 mpg), allowing for longer journeys without frequent stops at the pump. The R71's design is as functional as it is stylish, featuring a tubular steel duplex cradle frame that provides stability and durability. Suspension is handled by a cartridge system up front and twin shock-swingarm in the rear, ensuring a comfortable ride even on less-than-perfect roads. The drum brakes, both front and rear, are 200 mm in diameter, offering reliable stopping power in a classic package. With a weight of 187 kg (412.3 lbs) and dimensions that evoke a sense of timelessness, the R71 is easy to handle while exuding a presence that commands attention. ####
Pros
Cons
- Timeless Design: The classic styling and boxer engine configuration make the R71 a head-turner at any motorcycle gathering.
- Reliable Performance: The low maintenance and robust nature of the engine and drivetrain contribute to a dependable riding experience.
- Fuel Efficiency: With 52.27 mpg, the R71 allows for extensive rides without the constant need for refueling.
- Limited Power: While adequate for cruising, the 22.03 HP may feel underwhelming for modern performance enthusiasts.
- Basic Brake Technology: The drum brake system, while historically significant, may not provide the stopping power expected by contemporary riders.
- Kick Starter Only: The traditional kick starter may deter those accustomed to the convenience of electric start systems.
Technical details
Source specification data
- Make
- BMW
- Model
- R71
- Category
- Custom-cruiser
- Starter
- Kick
- Carrying Capacity
- 210
- Power
- 22.03 HP (16.1 kW)) @ 4600 RPM
- Clutch
- Dry-single plate-cable operated
- Gearbox
- 4-speed
- Top Speed
- 125.0 km/h (77.7 mph)
- Fuel System
- Carburettor. Graetzin G24
- Bore X Stroke
- 78.0 x 78.0 mm (3.1 x 3.1 inches)
- Compression
- 5.5:1
- Displacement
- 746.00 ccm (45.52 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
- Wet sump
- Transmission Type Final Drive
- Shaft drive (cardan)
- Fuel Capacity
- 14.00 litres (3.70 gallons)
- Overall Width
- 815 mm (32.1 inches)
- Overall Height
- 960 mm (37.8 inches)
- Overall Length
- 2,130 mm (83.9 inches)
- Weight Incl Oil Gas Etc
- 187.0 kg (412.3 pounds)
- Seat
- Single seat
- Wheels
- Spoked
- Rear Tyre
- 3.5-19
- Frame Type
- Tubular steal duplex cradle
- Front Tyre
- 3.5-19
- Rear Brakes
- Expanding brake (drum brake)
- Front Brakes
- Expanding brake (drum brake). Single
- Rear Suspension
- Twin shock-Swingarm
- Front Suspension
- Cartridge
- Rear Brakes Diameter
- 200 mm (7.9 inches)
- Front Brakes Diameter
- 200 mm (7.9 inches)