VHM insert Yamaha YZ250X 2016 - 2022 (21.80cc) VHM standard AE32021-092 250MXC Use VHM standard insert:AE32256-L (1990

Use VHM standard insert:AE32256-L (1990 - 1991 dome piston)AE32256-E (1992 - 1999 flat top piston)

ensuring full compatibility with individual models and reliability under stress conditions

Double the reed tip surface over a conventional reed valve design

This system develops extreme pressures that can flex the stock cover and take some of the feel out of the clutch

Included in the kit are 1 bracket

VHM insert Yamaha YZ250X 2016 - 2022 (21.80cc) VHM standard AE32021-092 250MXC Use VHM standard insert:AE32256-L (1990This insert with 21. 80cc volume is the VHM standard for Yamaha YZ250X and is developed for the best overall performance. The combustion chamber fits the VHM cylinder head perfectly and is easy to change. The last numbers of the part number are engraved on the insert for indentification. Use in combination with VHM head AA33080 Best overall performance Quick to adjust Good resistance to detonation This insert does not fit into an OEM head, only a VHM