BMW R37: history, specs, pictures
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| BMW R 37 | |
| Manufacturer | |
|---|---|
| Production | 1925 |
| Class | Classic |
| Engine | air-cooled, four-stroke, boxer twin cylinder, OHV |
| Bore / Stroke | 68.6mm x 68.6mm |
| Compression ratio | 6.2:1 |
| Top Speed | 71 mph (115 km/h) |
| Horsepower | 15.96 HP (11.9 KW) @ 4000RPM |
| Transmission | Gear box: 3 speed, manual Clutch: dry, single plate |
| Suspension | Front: twin cantilever spring Rear: hard-tail, sprung seat |
| Brakes | Front: 150mm drum Rear: block brake |
| Front Tire | 26 x 3.00 |
| Rear Tire | 26 x 3.00 |
| Wheelbase | 54.33 inches (1380 mm) |
| Length | 82.68 inches (2100 mm) |
| Width | 31.5 inches (800 mm) |
| Weight | 134.0 kg (wet) |
| Fuel Consumption | 4.00 liters/100 km (25.0 km/l or 58.81 mpg) |
| Manuals | Service Manual |
The BMW R 37 was a air-cooled, four-stroke, boxer twin cylinder, OHV Classic motorcycle produced by BMW in 1925. Claimed horsepower was 15.96 HP (11.9 KW) @ 4000 RPM.
Engine
A 68.6mm bore x 68.6mm stroke result in a displacement of just 494.0 cubic centimeters.
Drive
The bike has a 3 speed, manual transmission. Power was moderated via the dry, single plate.
Chassis
It came with a 26 x 3.00 front tire and a 26 x 3.00 rear tire. Stopping was achieved via 150mm drum in the front and a block brake in the rear. The front suspension was a twin cantilever spring while the rear was equipped with a hard-tail, sprung seat. The wheelbase was 54.33 inches (1380 mm) long.
1925 - 1927 BMW R 37
1925 BMW R37
1925 BMW R37 Left Side
1925 BMW R37 Engine Right side
1925 BMW R37 Engine left side
1925 BMW R37 drive shaft
1925 BMW R37 Handlebars
The 1925 BMW R 37 comes with features such as front and rear luggage racks, laced wheels with whitewall tires mounted on them, a cantilever spring front suspension coupled to a hard-tail in the rear, a single, sprung saddle, a front drum brake and a block brake in the rear, a center stand and pull-back handlebars. In the engine department it sports an air-cooled, four-stroke, 494cc, boxer twin cylinder engine mated to a three-speed manual transmission and can produce a claimed 16 horsepower at 4000 rpm.
References
- ↑ 1925 BMW R37 Auction. Mecum.
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