Vhm Cyl. Head Nsert Yz125 `22-24 10.80 -0.10 1.00

This insert has a lower volume / higher compression ratio than our VHM standard insert, meaning more low and middle range torque. This improves acceleration and gives an increased torque feeling when exiting corners. However, keep in mind that this compromises top speed. 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 identification. Use in combination with VHM head AA33203 Use the insert chart as a general guideline to select the insert depending on the fuel, track and elevation. When using VHM cylinder head in combination with VHM CDI (CD020422), please use the second insert chart. For use see insert chart table Quick to adjust This insert does not fit into an OEM head, only a VHM cylinder head. It's recommended to use good fuel against detonation.