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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.