
BMW R71
Key specifications
Overview
Introducing the 1941 BMW R71, a striking representation of pre-war motorcycle engineering that melds classic aesthetics with solid performance. Positioned in the custom-cruiser category, the R71 is a beloved relic, celebrated by enthusiasts and collectors alike for its iconic design and robust construction. With its sleek lines and distinctive boxer engine, this motorcycle not only embodies the spirit of the era but also offers a glimpse into the innovative spirit of BMW during a tumultuous time in history. At the heart of the R71 is its powerful 746 cc two-cylinder boxer engine, which delivers a respectable 22.03 HP at 4600 RPM. Riders will appreciate the smooth, torquey performance that this four-stroke engine provides, making the R71 a pleasure to ride on both city streets and winding country roads. With a top speed of 125 km/h (77.7 mph), this motorcycle offers a thrilling ride without sacrificing comfort. The air-cooled engine operates efficiently, consuming just 4.50 liters per 100 km, allowing for longer journeys before needing to refuel. The four-speed gearbox paired with a reliable shaft drive ensures that power is delivered seamlessly to the rear wheel, while the dry single-plate clutch adds a touch of traditional charm to the riding experience. The R71 is not just about performance; it also boasts several key features that enhance its riding experience and overall functionality. The front and rear expanding drum brakes, each measuring 200 mm, provide reliable stopping power, while the cartridge front suspension and twin shock swingarm rear suspension work together to deliver a smooth and stable ride. With a weight of 187 kg (412.3 pounds) and dimensions that make it approachable for riders of various heights, the R71 strikes a fine balance between agility and sturdiness. Its kick starter adds a nostalgic touch, reminding riders of a simpler time in motorcycling history. **
Pros
- Iconic Design: The R71’s classic styling and distinctive boxer engine make it a head-turner on any road.
- Fuel Efficiency: With a consumption of 4.50 liters per 100 km, it’s an economical choice for longer rides.
- Smooth Ride: The combination of the suspension system and shaft drive contributes to a comfortable and stable riding experience.
Cons
- Limited Power: With just over 22 HP, it may not satisfy riders looking for a high-performance motorcycle.
- Drum Brakes: While adequate for its time, the drum brake system may feel less responsive compared to modern hydraulic disc brakes.
- Kick Start Only: The absence of an electric starter can be cumbersome for some riders, particularly in challenging conditions.
Technical details
Source specification data
- Make
- BMW
- Model
- R71
- Category
- Custom-cruiser
- Starter
- Kick
- 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)
- Wheels
- Spoked
- Rear Tyre
- 3.5-19
- 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)