- Laboratory flow analysis proves Boyesen dual-stage reeds outperform standard reeds
- They permit greater flow velocity over the entire range of operating pressures
- Increased performance from start-up to top acceleration
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1990-1992 | KTM | 125 DXC | |
| 1992-1998 | KTM | 125 EGS | |
| 1989-1998 | KTM | 125 EXC | |
| 1984-1991 | KTM | 125 MX | |
| 1988 | KTM | 125 MXC | |
| 1997-1998 | KTM | 125 Sting | |
| 1992-1998 | KTM | 125 SX | |
| 1998 | KTM | 200 EGS | |
| 1998 | KTM | 200 EXC | |
| 1998 | KTM | 200 MXC | |
| 1998 | KTM | 200 SX | |
| 2008-2009 | KTM | 200 XC | |
| 1996-1997 | KTM | 360 EGS | |
| 1996-1997 | KTM | 360 EXC | |
| 1996-1997 | KTM | 360 MXC | |
| 1996-1997 | KTM | 360 SX | |