| name | ratio / crank | weight | bearings | capacity | brake | year country |
|---|---|---|---|---|---|---|
| C-55L (discontinued) | 5.5:1 21"/pc | 6.9oz | 5+1 | 0.30/130m | 6kg | 2015 |
| C-64R (discontinued) | 6.4:1 25"/pc | 6.9oz | 5+1 | 0.30/130m | 6kg | 2015 |
| C-81H (discontinued) | 8.1:1 31"/pc | 6.9oz | 5+1 | 0.30/130m | 6kg | 2015 |