| (in)indirect shaft | (out)main shaft | ratio | |
| 1th gear | 9 teeth | 36 teeth | 1:4 |
| 2th gear | 14 teeth | 32 teeth | 1:2.28 |
| 3th gear | 17 teeth | 29 teeth | 1:1.7 |
| 4th gear | 20 teeth | 26 teeth | 1:1.3 |
| backwards | 17 teeth | 33 teeth | |
| sets 4th gear “long” available http://www.oldtimergarage.eu | 21 teeth | 25 teeth | 1:1.19 |
| 22 teeth | 24 teeth | 1:1.09 | |
| 23 teeth | 23 teeth | 1:1 | |
| set 3th gear “long” advised in combination with “long” 4th | 18 teeth | 28 teeth | 1:1.55 |
3 different types of casing, for oil bath air filter MT9-10 and 2 types for air filter MT11-16
Not all with 4 speed with reverse and semi automatic clutch !
There were also solo MT804 gearboxes, which came with the reverse (backwards 🙂 gear completely omitted. No reverse gear and no hole drilled in the casing for the reverse hand lever.
