
BMW R23
Key specifications
Overview
The 1939 BMW R23 stands as a testament to the artistry and engineering prowess of early 20th-century motorcycle design. Positioned in the allround category, this bike appeals to a diverse range of riders, from the casual commuter to the adventurous weekend tourer. With its classic aesthetic and robust functionality, the R23 embodies the spirit of a bygone era while offering the reliability that BMW motorcycles are renowned for. As World War II loomed, the R23 captured the essence of an age where motorcycles were not just machines but symbols of freedom and individuality. At the heart of the R23 lies a single-cylinder, four-stroke engine with a displacement of 247 cc, producing a respectable 10.06 horsepower at 5,400 RPM. This power plant is designed for spirited yet manageable performance, allowing riders to reach a top speed of 95 km/h (59 mph). The engine’s 6.1:1 compression ratio, along with a meticulous bore and stroke of 68 mm, ensures smooth acceleration and reliable torque. Coupled with a three-speed gearbox and a shaft drive system, the R23 delivers an engaging riding experience that is both responsive and enjoyable. Whether navigating city streets or cruising along open roads, the R23 showcases a harmonious balance of power and control. The R23 is not just about engine performance; it is also equipped with features that underline its engineering sophistication. Its steel single cradle frame provides robust stability, while the telescopic front fork and rigid rear suspension work together to offer a comfortable ride, absorbing the bumps of uneven roads. The bike’s braking system employs expanding drum brakes both front and rear, with diameters of 160 mm and 180 mm respectively, ensuring adequate stopping power. Furthermore, the kick starter adds a nostalgic touch that harkens back to simpler times, allowing riders to engage with their machine in an intimate and satisfying manner. **
Pros
- Classic Aesthetic: The timeless design of the R23 appeals to vintage motorcycle enthusiasts and collectors alike.
- Reliable Performance: The single-cylinder engine offers dependable power and a smooth riding experience suitable for daily commuting and leisurely rides.
- Sturdy Build Quality: The robust steel frame and quality construction contribute to the bike’s longevity and resilience on the road.
Cons
- Limited Power: With only 10.06 HP, the R23 may struggle to keep up with modern traffic speeds, making it less ideal for highway use.
- Rigid Rear Suspension: While it offers stability, the rigid rear can lead to a less comfortable ride on rough terrain compared to more modern suspension systems.
- Minimal Gear Options: The three-speed gearbox may feel limiting for riders accustomed to more advanced transmission systems, potentially reducing versatility in varying riding conditions.
Technical details
Source specification data
- Make
- BMW
- Model
- R23
- Category
- Allround
- Starter
- Kick
- Carrying Capacity
- 200kg
- Power
- 10.06 HP (7.3 kW)) @ 5400 RPM
- Clutch
- Single plate dry
- Gearbox
- 3-speed
- Ignition
- Battery
- Top Speed
- 95.0 km/h (59.0 mph)
- Fuel System
- Carburettor. Amal
- Bore X Stroke
- 68.0 x 68.0 mm (2.7 x 2.7 inches)
- Compression
- 6.1:1
- Displacement
- 247.00 ccm (15.07 cubic inches)
- Cooling System
- Air
- Engine Details
- Single cylinder, four-stroke
- Lubrication System
- Wet sump
- Transmission Type Final Drive
- Shaft drive (cardan)
- Fuel Capacity
- 9.60 litres (2.54 gallons)
- Overall Width
- 800 mm (31.5 inches)
- Overall Height
- 900 mm (35.4 inches)
- Overall Length
- 2,000 mm (78.7 inches)
- Weight Incl Oil Gas Etc
- 135.0 kg (297.6 pounds)
- Rear Tyre
- 2.99-19
- Frame Type
- Steel-single cradlel
- Front Tyre
- 2.99-19
- Rear Brakes
- Expanding brake (drum brake)
- Front Brakes
- Expanding brake (drum brake)
- Rear Suspension
- Rigid
- Front Suspension
- Telescopic fork
- Rear Brakes Diameter
- 180 mm (7.1 inches)
- Front Brakes Diameter
- 160 mm (6.3 inches)