
BMW R51 3
Key specifications
Overview
Introducing the 1951 BMW R51 3, a classic motorcycle that seamlessly blends timeless design with innovative engineering of its era. Positioned as an allrounder, the R51 3 exemplifies BMW's commitment to quality and performance, making it a sought-after gem among collectors and riding enthusiasts alike. With its distinct boxer engine configuration and robust construction, this motorcycle not only pays homage to BMW's rich heritage but also provides a thrilling ride that stands the test of time. At the heart of the R51 3 lies a powerful 494cc two-cylinder boxer engine, delivering an impressive 24.07 horsepower at 5800 RPM. This four-stroke powerhouse is known for its unique character and smooth power delivery, making it a joy to ride on winding roads or cruising at a top speed of 135 km/h (83.9 mph). The air-cooled engine, combined with a 4-speed gearbox and shaft drive, ensures a reliable and engaging riding experience, while its fuel efficiency of 4.50 litres per 100 km (52.27 mpg) allows for extended journeys with fewer stops at the pump. The balanced bore and stroke measurement of 68mm x 68mm highlights BMW's dedication to engineering excellence, creating a harmonious blend of torque and power. The R51 3 is equipped with features that speak to its era while remaining functional for modern enthusiasts. Its steel single cradle frame provides stability and strength, complemented by telescopic rear suspension and cartridge front suspension for a smooth ride over various terrains. The dual 200mm drum brakes (expanding type) deliver reliable stopping power, ensuring confidence during spirited rides. A kick starter adds a nostalgic touch, reminding riders of the simpler times in motorcycling. With a fuel capacity of 17 liters, the R51 3 is designed for adventure, allowing riders to embark on long excursions without the constant worry of refueling. **
Pros
- Timeless Design: The R51 3 boasts classic aesthetics that appeal to vintage motorcycle enthusiasts.
- Smooth Engine Performance: The boxer engine offers a unique riding experience with great torque and smooth power delivery.
- Reliability: Known for its robust build and dependable performance, this motorcycle can handle various riding conditions.
Cons
- Limited Speed: While capable, its top speed may not satisfy those seeking high-performance thrills.
- Weight: At 190 kg, it may feel heavy for some riders, especially when maneuvering at low speeds.
- Maintenance: Parts for older models can be harder to find, potentially making maintenance more challenging for owners.
Technical details
Source specification data
- Make
- BMW
- Model
- R51 3
- Category
- Allround
- Starter
- Kick
- Carrying Capacity
- 355kg-600kg with sidecar
- Power
- 24.07 HP (17.6 kW)) @ 5800 RPM
- Clutch
- Dry-single plate-cable operated
- Gearbox
- 4-speed
- Top Speed
- 135.0 km/h (83.9 mph)
- Fuel System
- Carburettor. 22mm
- Bore X Stroke
- 68.0 x 68.0 mm (2.7 x 2.7 inches)
- Compression
- 6.3:1
- Displacement
- 494.00 ccm (30.14 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
- 17.00 litres (4.49 gallons)
- Overall Width
- 790 mm (31.1 inches)
- Overall Height
- 985 mm (38.8 inches)
- Overall Length
- 2,130 mm (83.9 inches)
- Weight Incl Oil Gas Etc
- 190.0 kg (418.9 pounds)
- Seat
- Solo seat with springs
- Rear Tyre
- 3.50-19.00
- Frame Type
- Steel single cradle
- Front Tyre
- 3.50-19.00
- Rear Brakes
- Expanding brake (drum brake). Simplex
- Front Brakes
- Expanding brake (drum brake). Duplex
- Rear Suspension
- Telscopic
- Front Suspension
- Cartridge
- Rear Brakes Diameter
- 200 mm (7.9 inches)
- Front Brakes Diameter
- 200 mm (7.9 inches)