BMW R51 2 1950 - Specifications & Review
Article Complete Info
| Articleid | 78259 |
|---|---|
| Category | Allround |
| Make | BMW |
| Model | R51 2 |
| Year | 1950 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Steel single cradle |
|---|---|
| Frontbrakes | Expanding brake (drum brake). Half hub |
| Frontbrakesdiameter | 200 mm (7.9 inches) |
| Frontsuspension | Cartridge |
| Fronttyre | 3.50-19.00 |
| Rearbrakes | Expanding brake (drum brake). Half hub |
| Rearbrakesdiameter | 200 mm (7.9 inches) |
| Rearsuspension | Twin shock-Swingarm |
| Reartyre | 3.50-19.00 |
| Seat | Solo seat with springs |
Engine & Transmission
| Borexstroke | 68.0 x 68.0 mm (2.7 x 2.7 inches) |
|---|---|
| Clutch | Dry-single plate-cable operated |
| Compression | 6.4:1 |
| Coolingsystem | Air |
| Displacement | 494.00 ccm (30.14 cubic inches) |
| Enginedetails | Two cylinder boxer, four-stroke |
| Fuelconsumption | 4.10 litres/100 km (24.4 km/l or 57.37 mpg) |
| Fuelsystem | Carburettor. Bing 22mm |
| Gearbox | 4-speed |
| Greenhousegases | 95.1 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Ignition | Battery |
| Lubricationsystem | Wet sump |
| Power | 24.07 HP (17.6 kW)) @ 5600 RPM |
| Topspeed | 135.0 km/h (83.9 mph) |
| Transmissiontypefinaldrive | Shaft drive (cardan) |
Other Specifications
| Carryingcapacity | 210kg |
|---|---|
| Starter | Kick |
Physical Measures & Capacities
| Fuelcapacity | 14.00 litres (3.70 gallons) |
|---|---|
| Groundclearance | 120 mm (4.7 inches) |
| Overallheight | 720 mm (28.3 inches) |
| Overalllength | 2,130 mm (83.9 inches) |
| Overallwidth | 815 mm (32.1 inches) |
| Weightincloilgasetc | 185.0 kg (407.9 pounds) |
About BMW R51 2 1950
The 1950 BMW R51/2 stands as a quintessential example of post-war motorcycle engineering, combining classic design with innovative technology that was ahead of its time. Positioned firmly in the allround category, this bike appealed to a diverse range of riders—from daily commuters to adventure seekers. With its distinctive boxer engine and elegant lines, the R51/2 not only turned heads but also set a benchmark for reliability and performance in the motorcycle market of the era.
At the heart of the R51/2 is a robust 494cc, two-cylinder boxer engine, producing a commendable 24.07 horsepower at 5600 RPM. This four-stroke powerhouse delivers a top speed of 135 km/h (83.9 mph), making it a capable companion for both city rides and countryside excursions. The engine features a 6.4:1 compression ratio and is fed by a Bing 22mm carburettor, ensuring smooth power delivery throughout the rev range. The air-cooled design, coupled with a 4-speed gearbox and a reliable shaft drive, provides riders with a wonderfully engaging experience—characterized by a low center of gravity and superb road handling that makes navigating twisty roads a delight.
The R51/2 is not just about performance; it also showcases several key features that highlight BMW's commitment to quality and rider comfort. The steel single cradle frame provides a sturdy foundation, while the dual drum brakes—both front and rear—ensure reliable stopping power. The suspension system, featuring cartridge front suspension and twin shock rear suspension, contributes to a smooth ride, soaking up bumps with ease. With a fuel tank capacity of 14 liters and an impressive fuel consumption rate of 4.10 liters per 100 km, this motorcycle is as practical as it is stylish, making it ideal for long journeys.
Pros:
- Classic Design: The R51/2’s timeless aesthetic appeals to vintage motorcycle enthusiasts and collectors alike.
- Smooth Handling: The boxer engine and low center of gravity provide excellent stability and handling, making it easy to maneuver in various conditions.
- Fuel Efficiency: With an impressive fuel consumption of 57.37 MPG, this bike is economical for both daily commuting and long-distance rides.
Cons:
- Limited Power: While adequate for its time, the power output may feel modest to modern riders accustomed to higher-performance machines.
- Kick Start Only: The traditional kick starter may deter some riders who prefer the convenience of electric start options.
- Heavier Weight: At 185 kg (407.9 lbs), the R51/2 can feel heavier compared to contemporary lightweight models, potentially making it less appealing for newer riders.
In summary, the 1950 BMW R51/2 is more than just a motorcycle; it is a piece of history that encapsulates the spirit of post-war innovation and the timeless appeal of BMW's engineering prowess. Whether you are a seasoned rider or an admirer of classic motorcycles, the R51/2 invites you to take a journey back in time while enjoying the ride.