BMW R42: history, specs, pictures
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| 'BMW R42' | |
| Manufacturer | [[BMW]] |
|---|---|
| Production | 1926 - 1928 |
| Engine | two cylinder boxer, four-stroke |
| Bore / Stroke | 68.0mm x 68.0mm |
| Top Speed | 59 mph (95 km/h) |
| Horsepower | 11.67 HP (8.7 KW) @ 3400RPM |
| Fuel System | carburetor. 20mm bmw spezial |
| Transmission | Gear box: 3-speed Final Drive: shaft drive (cardan) |
| Suspension | Front: leading link Rear: rigid |
| Brakes | Front: expanding brake (drum brake) |
| Front Tire | 3.5-26 |
| Rear Tire | 3.5-26 |
| Wheelbase | 55.51 inches (1410 mm) |
| Length | 82.68 inches (2100 mm) |
| Width | 31.5 inches (800 mm) |
| Height | 37.4 inches (950 mm) |
| Weight | 126.0 kg (wet) |
| Fuel Consumption | 3.00 liters/100 km (33.3 km/l or 78.41 mpg) |
| Manuals | Service Manual |
The BMW R42 was a two cylinder boxer, four-stroke standard produced by BMW between 1926 and 1928. It could reach a top speed of 59 mph (95 km/h). Claimed horsepower was 11.67 HP (8.7 KW) @ 3400 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 dry-single plate-cable operated.
Chassis
It came with a 3.5-26 front tire and a 3.5-26 rear tire. The front suspension was a leading link while the rear was equipped with a rigid. The wheelbase was 55.51 inches (1410 mm) long.