Selector drum and fork gear selector system. A lever linkage controls selector drum rotation.
6-speed gearbox.
Primary reduction: 59/32=1.84
Final drive ratio (sprocket/crown): 15/42
Gearbox ratios
| 1st | 37/15 | 12.70 |
| 2nd | 30/17 | 9.09 |
| 3rd | 27/20 | 6.95 |
| 4th | 24/22 | 5.62 |
| 5th | 23/24 | 4.93 |
| 6th | 24/28 | 4.41 |
Final drive from gearbox to rear wheel by chain:
- Make: DID
- Type: 525 HV
- Dimensions (pitch x inside width between side plates): 5/8" x 5/16"
- Pin diameter: 10.16 mm/0.399 in.
- № of links: 102