If you like our site, please consider joining our club!
By joining you will help ensure that we can continue to provide this service
JOIN HERE!
R71
Model Documentation
- R71 data sheet (English language) (published 1928) (1.7 MB)
- R71 Owners handbook (English language) (published 1938) (5.5 MB)
- R71 Owners handbook (German language) (published 1938) (7.3 MB)
- R71 Owners handbook (German language) (published 1939) (6.8 MB)
- R71 parts manual (German language) (published 1938) (14.1 MB)
- R71 parts manual (German language) (published 1939) (6.7 MB)
- R71 parts manual (German language) (published 1941) (1.7 MB)
- R71 parts manual (German language) (published 1942) (8.6 MB)
Model Specifications | |
|---|---|
| Drivetrain | |
| Displacement | 746cc |
| Cylinders | 2 |
| Bore x Stroke (mm) | 78 x 78 |
| HP @ RPM | 22 @ 4600 |
| Compression Ratio | 5.5:1 |
| Valves | Sidevalve, 2 per cylinder |
| Clutch | Dry, single plate, cable operated |
| Transmission | 4 speed, foot shifted |
| Final Drive | Driveshaft |
| Running Gear | |
| Frame | Tubular steel double cradle |
| Front Suspension | Hydraulically damped telescopic fork |
| Rear Suspension | Plunger |
| Front Brakes | 200mm drum, single leading shoe |
| Rear Brakes | 200mm drum, single leading shoe |
| Electrical | |
| Ignition | Battery/coil |
| Spark Plugs | Bosch W175T1 |
| Generator | Bosch RD 45/6 6V 45/70W (early) RD 50/6 6V 50/75W (late) |
| Capacities & Measurements | |
| Weight | 187kg |
| Fuel | 14l |
| Wheelbase | 1400mm |
| Top Speed | 125kph |
| Number Produced | 3458 |
First range of serial numbers produced in 1938-39, second in 1941. The 1941 motorcycles left the factory with matching engine and frame numbers.
The information provided here was obtained from a variety
of public sources and may not reflect official BMW archival data.
Please contact the BMW Archives for official data
regarding models.