| name | ratio / crank | weight | bearings | capacity | brake | year country |
|---|---|---|---|---|---|---|
| 2000 FD | 5.1:1 27"/pc | 9.3oz | 7+1 | 0.285/130m | 2.5kg | |
| 4000 FD | 5.0:1 31"/pc | 10.8oz | 7+1 | 0.33/140m | 5kg | |
| 5000 FD | 5.0:1 33"/pc | 13.8oz | 7+1 | 0.405/130m | 7.5kg | |
| 8000 FD | 5.0:1 37"/pc | 20.5oz | 7+1 | 0.435/220m | 10kg |