Difference between revisions of "BMW R 3"
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{{Motorcycle | {{Motorcycle | ||
|name = | |name = BMW R 3 | ||
|photo=bmw-r-3-1937-1937-0.jpg | |photo=bmw-r-3-1937-1937-0.jpg | ||
|aka = | |aka = | ||
|manufacturer = | |manufacturer = BMW | ||
|parent_company = | |parent_company = | ||
|production = 1937 | |production = 1937 | ||
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|predecessor = | |predecessor = | ||
|successor = | |successor = | ||
|class = | |class = Classic | ||
|engine = air-cooled, four-stroke, single vertical cylinder | |engine = air-cooled, four-stroke, single vertical cylinder | ||
|bore_stroke = 68.6mm x 68.6mm | |bore_stroke = 68.6mm x 68.6mm | ||
Revision as of 20:28, 23 November 2019
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| BMW R 3 | |
| Manufacturer | |
|---|---|
| Production | 1937 |
| Class | Classic |
| Engine | air-cooled, four-stroke, single vertical cylinder |
| Bore / Stroke | 68.6mm x 68.6mm |
| Compression ratio | 6.0:1 |
| Horsepower | 11.0 HP (8.2 KW) @ 4200RPM |
| Transmission | Gear box: 4-speed, manual Final Drive: shaft |
| Suspension | Front: parallelogram fork Rear: hard-tail, sprung seat |
| Brakes | Front: 200mm drum Rear: 200mm drum |
| Front Tire | 3.50 x 26 |
| Rear Tire | 3.50 x 26 |
| Weight | 149.0 kg (wet) |
| Manuals | Service Manual |
The BMW R 3 was a air-cooled, four-stroke, single vertical cylinder Classic motorcycle produced by BMW in 1937. Claimed horsepower was 11.0 HP (8.2 KW) @ 4200 RPM.
Engine
A 68.6mm bore x 68.6mm stroke result in a displacement of just 305.0 cubic centimeters.
Drive
The bike has a 4-speed, manual transmission. Power was moderated via the dry, single plate.
Chassis
It came with a 3.50 x 26 front tire and a 3.50 x 26 rear tire. Stopping was achieved via 200mm drum in the front and a 200mm drum in the rear. The front suspension was a parallelogram fork while the rear was equipped with a hard-tail, sprung seat.
1937 BMW R 3
The 1937 MY BMW R 3 has, at its heart, an air-cooled, four-stroke, 305cc, single vertical cylinder powerplant paired to a four-speed manual transmission, that can produce a claimed 11 horsepower at 4200 rpm. Standard features include laced wheels, a rigid rear suspension with a sprung seat, a parallelogram front fork, a large headlight, a taillight, a drum braking system and large fenders.