BMW R4 Series 5 1937 - Specifications & Review
Article Complete Info
| Articleid | 658853 |
|---|---|
| Category | Allround |
| Make | BMW |
| Model | R4 Series 5 |
| Year | 1937 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Pressed steel duplex |
|---|---|
| Frontbrakes | Expanding brake (drum brake) |
| Frontbrakesdiameter | 180 mm (7.1 inches) |
| Frontsuspension | Cartridge |
| Fronttyre | 3.50-26.00 |
| Rearbrakes | Expanding brake (drum brake) |
| Rearbrakesdiameter | 180 mm (7.1 inches) |
| Rearsuspension | Rigid |
| Reartyre | 3.50-26.00 |
Engine & Transmission
| Clutch | Dry-single plate-cable operated |
|---|---|
| Compression | 5.7:1 |
| Coolingsystem | Air |
| Displacement | 398.00 ccm (24.29 cubic inches) |
| Enginedetails | Single cylinder, four-stroke |
| Fuelconsumption | 3.50 litres/100 km (28.6 km/l or 67.21 mpg) |
| Fuelsystem | Carburettor. SUM CK 3/500 Fr |
| Greenhousegases | 81.2 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Lubricationsystem | Wet sump |
| Power | 14.00 HP (10.2 kW)) @ 4000 RPM |
| Topspeed | 95.0 km/h (59.0 mph) |
| Transmissiontypefinaldrive | Shaft drive (cardan) |
Other Specifications
| Starter | Kick |
|---|
Physical Measures & Capacities
| Fuelcapacity | 12.00 litres (3.17 gallons) |
|---|---|
| Overallheight | 959 mm (37.8 inches) |
| Overalllength | 1,980 mm (78.0 inches) |
| Overallwidth | 850 mm (33.5 inches) |
About BMW R4 Series 5 1937
Introducing the 1937 BMW R4 Series 5, a remarkable allround motorcycle that embodies the engineering prowess of pre-war Germany. As BMW's entry into the mid-range motorcycle market, the R4 Series 5 was designed to appeal to a diverse audience, from daily commuters to weekend adventurers. With its elegant lines and robust construction, this classic bike not only offers a glimpse into the past but also delivers a riding experience that remains captivating to enthusiasts today.
At the heart of the R4 Series 5 lies a single-cylinder, four-stroke engine with a displacement of 398cc. This powerhouse generates a respectable 14 HP at 4000 RPM, allowing the bike to reach a top speed of 95 km/h (59 mph). Its air-cooled design, coupled with a dry single-plate clutch and cardan shaft drive, provides a smooth and reliable ride. Riders will appreciate the impressive fuel efficiency, achieving around 67.21 mpg, making it an economical choice for the time. Whether navigating urban streets or cruising along country roads, the R4 promises a spirited performance that reflects BMW's commitment to quality and precision.
The R4 Series 5 is not just about performance; it also boasts a range of features that enhance the riding experience. The pressed steel duplex frame provides excellent stability, while the drum brakes—both front and rear—ensure reliable stopping power. The front suspension employs a cartridge system, allowing for a more comfortable ride, while the rear remains rigid, providing a classic feel that many purists cherish. With a fuel capacity of 12 liters, riders can embark on longer adventures without the constant worry of refueling.
Pros and Cons of the 1937 BMW R4 Series 5:
Pros:
- Fuel Efficiency: With a consumption rate of 3.50 litres/100 km, this bike is economical for both short commutes and long rides.
- Classic Aesthetic: The elegant design and historical significance make it a standout piece for collectors and vintage motorcycle enthusiasts.
- Smooth Ride: The cardan shaft drive and excellent suspension contribute to a smooth and enjoyable riding experience.
Cons:
- Limited Power: The 14 HP output may not satisfy riders seeking high-performance thrills compared to modern motorcycles.
- Rigid Rear Suspension: While it appeals to purists, the rigid rear may not provide the same comfort level as contemporary suspension systems.
- Kick Starter: The traditional kick-start mechanism may be less convenient than modern electric starters, posing a challenge for some riders.
Overall, the 1937 BMW R4 Series 5 offers a captivating blend of classic style, reliable performance, and historical significance that continues to resonate with motorcycle enthusiasts and collectors alike.