Advance composite techology, super quick reed petal changes. redesigned reed stops. Custom air guides, air foil techology.
| Model/Year | Part # |
| Honda | |
| CR85 All | 727660 |
| CR125 87-00 (2002) | 727651* |
| CR125 03-04 | 727650 |
| CR125 05-06 | 727671 |
| CR250 (2002) | 727653 |
| CR250 03-04 | 727652 |
| CR250 05-06 | 727670 |
| Kawasaki | |
| KX65 All | 727661 |
| KX80/85/100 89-06 | 727663 |
| KX125 03-06 | 727654 |
| KDX 200/220 All | 727672 |
| KX250 87-04 | 727655 |
| KX250 05-06 | 727669 |
| KTM | |
| 50cc All Models | 727664 |
| 65cc All Models | 727665 |
| 85cc All Models | 727666 |
| 125/200SX All Models | 727659 |
| Suzuki | |
| RM65 All Models | 727661 |
| RM80/85 89-06 | 727662 |
| RM125 89-06 | 727656 |
| RM250 03-06 | 727657 |
| Yamaha | |
| YZ80/85 93-06 | 727667 |
| YZ125 95-04 | 727658 |
| YZ125 05-06 | 727668 |
| YZ250 97-06 | 727668 |