R71 Literature
| R51,R61,R66,R71 | Owners Manual |
| R51,R61,R66,R71 | Owners Manual - German |
| R51,R61,R66,R71 | Workshop Manual - German |
| R51,R61,R66,R71 | Parts List - German |
| R61, R71 | Spare Parts List - illustrations only |
| Plunger Frame | Electrics |
| R71 | Motorcycling 1938 |