Description
Features
- Simple but effective way to shift the torque curve to favor the low-end to mid-range band of the rev range
- CNC-machined, eliminating interference problems when installing; includes gaskets and bolts
- Insert spacer between cylinder and reed valve
- Made in the USA
| Position | Notes | |||
|---|---|---|---|---|
| 2002-2019 | Yamaha | YZ85 | - | - |
| 1993-2001 | Yamaha | YZ80 | - | - |
