VHM insert Yamaha YZ250 1999 - 2022 / Fantic XX250 2021 - 2022 (20.60cc) VHM standard AE32021-B ^Sale

This insert with 20.60cc volume is the VHM standard for Yamaha YZ250 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