Mbike - Catalogue. Community. Map.
Catalogue. Community. Map.
BMW R71 
1939 
Air cooled, 746cc, Boxer, OHV
| Power: | 22.03 HP (16.2 kW) @ 4600 rpm |
| Final drive: | Shaft |
| Top speed: | 77.67 mph |
| Curb weight: | 412.3 lbs |
| Category: | Classic |
| Tags: | All-rounder, Classic bike |
|
Engine and transmission
|
|
| Engine type: | 2 cylinders, 4-stroke, Boxer |
| Displacement: | 746 cc (45.58 cubic inches) |
| Bore × stroke: | 3.07 inch × 3.07 inch (square) |
| Cooling system: | Air cooled |
| Power: | 22.03 HP (16.2 kW) @ 4600 rpm |
| Throttle: | Cable operated |
| Valves | |
| Valve train: | OHV, variable |
| Valves per cylinder: | 2 |
| Fuel and ignition | |
| Sparks per cylinder: | 1 |
| Fuel supply system: | Carburetor |
| Funnel diameter: | 0.94 inch |
| Compression: | 5.5:1 |
| Engine mounting: | Longitudinal |
| Lubrication system: | Wet sump |
| Gear box: | Manual 4-speed |
| Clutch: | Dry, single plate, cable operated |
| Final drive: | Shaft |
| Spark plug pipe type: | Bosch, W 175 T1 |
| Starter: | Kick-starter |
|
Dimensions
|
|
| Physical measures | |
| Length: | 83.9 inch |
| Width: | 32.1 inch |
| Height: | 37.8 inch |
| Wheel base: | 55.1 inch |
| Weight | |
| Curb weight: | 412.3 lbs |
|
Chassis and suspension
|
|
| Frame type: | steel, Double cradle frame |
| Front | |
| Suspension: | Cartridge |
| Brake: | Single Drum, Ø7.87 inch |
| Tire: | 3.5 × 19 |
| Rear | |
| Suspension: | twin shock, Swingarm |
| Brake: | Drum, Ø7.87 inch |
| Tire: | 3.5 × 19 |
|
Other
|
|
| ABS available: | No |
| Power-to-weight ratio: | 0.09 KW/lbs (11.54 lbs/HP) |
| Top speed: | 77.67 mph |
| Fuel capacity: | 3.7 gals |
| Number of riders: | 1 person |
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