Difference between revisions of "BMW R 25/3"
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{{Motorcycle | {{Motorcycle | ||
|name = | |name = BMW R 25/3 | ||
|photo=bmw-r-253-1953-1956-1.jpg | |photo=bmw-r-253-1953-1956-1.jpg | ||
|aka = | |aka = | ||
|manufacturer = | |manufacturer = BMW | ||
|parent_company = | |parent_company = | ||
|production = 1953 | |production = 1953 | ||
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|predecessor = | |predecessor = | ||
|successor = | |successor = | ||
|class = | |class = Classic | ||
|engine = air-cooled, four-stroke, single cylinder, OHV, 2 valves per cylinder | |engine = air-cooled, four-stroke, single cylinder, OHV, 2 valves per cylinder | ||
|bore_stroke = 68.6mm x 68.6mm | |bore_stroke = 68.6mm x 68.6mm | ||
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[[Category:BMW motorcycles]] | [[Category:BMW motorcycles]] | ||
[[Category:1950s motorcycles]] | [[Category:1950s motorcycles]] | ||
Latest revision as of 20:28, 23 November 2019
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| BMW R 25/3 | |
| Manufacturer | |
|---|---|
| Production | 1953 |
| Class | Classic |
| Engine | air-cooled, four-stroke, single cylinder, OHV, 2 valves per cylinder |
| Bore / Stroke | 68.6mm x 68.6mm |
| Compression ratio | 6.5:1 |
| Horsepower | 13.01 HP (9.7 KW) @ 5600RPM |
| Transmission | Gear box: 4-speed, manual Final Drive: shaft |
| Suspension | Front: telescopic fork Rear: pushrod, sprung seat |
| Brakes | Front: single 160mm drum Rear: single 160mm drum |
| Front Tire | 3.25x19 |
| Rear Tire | 3.25x19 |
| Length | 81.61 inches (2073 mm) |
| Width | 29.53 inches (750 mm) |
| Weight | 140.0 kg (wet) |
| Manuals | Service Manual |
The BMW R 25/3 was a air-cooled, four-stroke, single cylinder, OHV, 2 valves per cylinder Classic motorcycle produced by BMW in 1953. Claimed horsepower was 13.01 HP (9.7 KW) @ 5600 RPM.
Engine[edit | edit source]
A 68.6mm bore x 68.6mm stroke result in a displacement of just 247.0 cubic centimeters.
Drive[edit | edit source]
The bike has a 4-speed, manual transmission. Power was moderated via the dry, single plate.
Chassis[edit | edit source]
It came with a 3.25x19 front tire and a 3.25x19 rear tire. Stopping was achieved via single 160mm drum in the front and a single 160mm drum in the rear. The front suspension was a telescopic fork while the rear was equipped with a pushrod, sprung seat.
1953 - 1956 BMW R 25/3[edit | edit source]
The 1953 BMW R 25/3 boasts features such as laced wheels, a pushrod rear suspension with a sprung single seat, a telescopic front fork, a rear luggage rack, wide handlebars, a large headlamp, a small tail light, full fenders and a dry, single plate clutch. In the engine department, it sports an air-cooled, four-stroke, 247cc, single cylinder powerhouse mated to a four-speed manual transmission and can produce a claimed 13 horsepower at 5600 rpm.