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R51/2
Model Documentation
- R 51/2 Owners Handbook in English (English language) (published 1950) (6.3 MB)
- R 51/2 Owners Handbook (German language) (published 1950) (5.9 MB)
- R 51/2 Owners Handbook (April edition) (German language) (published 1950) (5.9 MB)
- R 51/2 Owners Handbook (German language) (published 1955) (5.8 MB)
- R 51/2 Parts Manual (German language) (published 1950) (11.3 MB)
- R51/2 parts manual (German language) (published 1953) (4.2 MB)
- R 51/2 Parts Manual (German language) (published 1953) (7.5 MB)
- R51/2 Parts manual (German language) (published 1956) (39.6 MB)
- Parts manual (German language) (published 1956) (39.6 MB)
- Parts Manual (German language) (published 1959) (37.4 MB)
- R 51/2 Workshop Manual (German language) (published 1950) (22.1 MB)
- R51/2 Workshop manual (German language) (published 1952) (4.8 MB)
Model Specifications | |
|---|---|
| Drivetrain | |
| Displacement | 494cc |
| Cylinders | 2 |
| Bore x Stroke (mm) | 68 x 68 |
| HP @ RPM | 24 @ 5800 |
| Compression Ratio | 6.4:1 |
| Valves | OHV, 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 W240T1 |
| Generator | Bosch RD 45/6/2400 6V 45W |
| Capacities & Measurements | |
| Weight | 185kg |
| Fuel | 14l |
| Wheelbase | 1400mm |
| Top Speed | 135kph |
| Number Produced | 5000 |
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.