BMW R66
| Manufacturer | BMW |
|---|---|
| Also called | R 66 |
| Production | 1938 - 1941 |
| Class | Classic |
| Engine | two cylinder boxer, four-stroke |
| Bore / Stroke | 69.8mm x 78.0mm |
| Compression ratio | 6.8:1 |
| Top speed | 90 mph (145 km/h) |
| Horse Power | 29.37 HP (21.9 KW) @ 5300RPM |
| Ignition type | forced feed |
| Battery | 6.8:1 |
| Transmission | Gear box: 4-speed Final Drive: shaft drive (cardan) |
| Suspension | Front: cartridge Rear: twin shock-swingarm |
| Brakes | Front: expanding brake (drum brake) Rear: expanding brake (drum brake) |
| Front Tire | 3.5-19 |
| Rear Tire | 3.5-19 |
| Wheelbase | 55.12 inches (1400 mm) |
| Dimensions | L 83.86 inches (2130 mm) W 32.09 inches (815 mm) H 37.8 inches (960 mm) |
| Weight | (dry), 187.0 kg (wet) |
| Fuel capacity | 3.7 Gallon (14.00 Liters) |
| Manuals | Service Manual |
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The BMW R66 was a two cylinder boxer, four-stroke Classic motorcycle produced by BMW between 1938 and 1941. It could reach a top speed of 90 mph (145 km/h). Claimed horsepower was 29.37 HP (21.9 KW) @ 5300 RPM.
Engine
The engine was a air cooled two cylinder boxer, four-stroke. A 69.8mm bore x 78.0mm stroke result in a displacement of just 596.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).
Drive
The bike has a 4-speed transmission. Power was moderated via the dry-single plate-cable operated.
Chassis
It came with a 3.5-19 front tire and a 3.5-19 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a cartridge while the rear was equipped with a twin shock-swingarm. The R66 was fitted with a 3.7 Gallon (14.00 Liters) fuel tank. The wheelbase was 55.12 inches (1400 mm) long.
1938 - 1941 BMW R 66
The 1938 BMW R 66 has, at its heart, an air-cooled, four-stroke, 595cc, single vertical cylinder powerhouse mated to a four-speed manual transmission that can reach a maximum power output of 30 horsepower at 5300 rpm. It also comes with a telescopic front fork, plunger shocks as a rear suspension, a sprung single seat, a rear, fender-mounted luggage rack, a round headlamp, a dual exhaust system, laced wheels, full fenders and a blacked-out, steel frame.