BMW R37: history, specs, pictures
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.
Manufacturer | BMW |
---|---|
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 |
Horse Power | 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) |
Dimensions | L 82.68 inches (2100 mm) W 31.5 inches (800 mm) |
Weight | (dry), 134.0 kg (wet) |
Manuals | Service Manual |
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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
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.
Manufacturer | BMW |
---|---|
Production | 1925 - 1926 |
Engine | two cylinder boxer, four-stroke |
Bore / Stroke | 68.0mm x 68.0mm |
Top speed | 71 mph (115 km/h) |
Horse Power | 15.69 HP (11.7 KW) @ 4000RPM |
Fuel system | carburettor. 26mm |
Ignition type | bosh magento |
Battery | 6.2:1 |
Transmission | Gear box: 3-speed Final Drive: shaft drive (cardan) |
Suspension | Front: leading link Rear: rigid |
Brakes | Front: expanding brake (drum brake) |
Front Tire | 2.99-26 |
Rear Tire | 2.99-26 |
Wheelbase | 54.33 inches (1380 mm) |
Dimensions | L 82.68 inches (2100 mm) W 31.5 inches (800 mm) H 37.4 inches (950 mm) |
Weight | (dry), 134.0 kg (wet) |
Fuel capacity | 3.7 Gallon (14.00 Liters) |
Fuel consumption | 4.00 litres/100 km (25.0 km/l or 58.81 mpg) |
Manuals | Service Manual |
Tech Specs · Brochures · Reviews · Ads · Videos |
The BMW R37 was a two cylinder boxer, four-stroke standard produced by BMW between 1925 and 1926. It could reach a top speed of 71 mph (115 km/h). Claimed horsepower was 15.69 HP (11.7 KW) @ 4000 RPM.
Engine
The engine was a air cooled two cylinder boxer, four-stroke. A 68.0mm bore x 68.0mm stroke result in a displacement of just 494.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).
Drive
The bike has a 3-speed transmission. Power was moderated via the single plate dry-cable operated.
Chassis
It came with a 2.99-26 front tire and a 2.99-26 rear tire. The front suspension was a leading link while the rear was equipped with a rigid. The R37 was fitted with a 3.7 Gallon (14.00 Liters) fuel tank. The wheelbase was 54.33 inches (1380 mm) long.