
BMW R23
Key specifications
Overview
Introducing the 1940 BMW R23, a quintessential example of pre-war motorcycle engineering that captures the essence of versatility and style. Positioned as an all-rounder, this classic bike was designed for those who sought both practical commuting and leisurely rides through the picturesque landscapes of post-war Europe. With its elegant lines and robust construction, the R23 stands as a testament to BMW's commitment to quality and performance, making it a sought-after model among vintage motorcycle enthusiasts today. At the heart of the R23 lies a single-cylinder, four-stroke engine with a displacement of 247 cc, delivering a spirited 10.06 horsepower at 5,400 RPM. This modest yet effective power output allows the motorcycle to achieve a top speed of 95 km/h (59 mph), making it perfectly suited for both city commuting and country jaunts. The 6.1:1 compression ratio, combined with a reliable Amal carburettor and air cooling, ensures that the R23 offers a smooth and responsive ride. With a three-speed gearbox and a shaft drive system, riders can enjoy seamless gear transitions and the low maintenance associated with BMW's innovative engineering. The R23 features a sturdy steel single cradle frame that embodies robustness while providing a classic aesthetic. The bike's suspension is notable for its telescopic front fork, which offers improved handling and comfort over bumpy terrain, while the rigid rear suspension maintains simplicity and reliability. Stopping power is provided by expanding drum brakes, with a 160 mm diameter in the front and a slightly larger 180 mm in the rear, ensuring that riders have confidence in their stopping capabilities. Coupled with its lightweight design, weighing in at just 135 kg (297.6 lbs), the R23 is nimble and easy to manage, making it a delight for both novice and seasoned riders alike. **
Pros
- Timeless Design: The R23 boasts a classic aesthetic that appeals to vintage motorcycle enthusiasts and collectors alike.
- Reliable Engineering: With its robust construction and low-maintenance shaft drive, the R23 exemplifies BMW's reputation for durability and engineering excellence.
- Smooth Ride: The combination of the telescopic front fork and lightweight frame provides a comfortable and responsive riding experience.
Cons
- Limited Power: The 10.06 HP output may feel underwhelming for riders accustomed to modern motorcycles with higher performance metrics.
- Basic Technology: As a motorcycle from the 1940s, the R23 lacks the advanced features and electronics found in contemporary machines.
- Kick Start Only: The absence of an electric starter can be a challenge for those who prefer the convenience of modern starting systems, requiring a bit of effort to get the engine running.
Technical details
Source specification data
- Make
- BMW
- Model
- R23
- Category
- Allround
- Starter
- Kick
- 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)