VHM insert Yamaha YZ250 1999 - 2022 / Fantic XX250 2021 - 2022 (20.60cc) VHM standard AE32021-B 250 SXF tuners and teams who rely

tuners and teams who rely on Maxima for unsurpassed performance in high-stress conditions without fail

Piston crown shape                           Dome

- HUSQVARNA TC 65 cc 2019/2023

Then you just install the orange screw portion with the three new Allen head screws provided and you are done

VHM insert Yamaha YZ250 1999 - 2022 / Fantic XX250 2021 - 2022 (20.60cc) VHM standard AE32021-B 250 SXF tuners and teams who relyThis 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