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.
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 |
EngineEdit
A 68.6mm bore x 68.6mm stroke result in a displacement of just 494.0 cubic centimeters.
DriveEdit
The bike has a 3 speed, manual transmission. Power was moderated via the dry, single plate.
ChassisEdit
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 37Edit
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.
ReferencesEdit
- ↑ 1925 BMW R37 Auction. Mecum.