AE32067-E
This insert with 12.00cc volume is the VHM standard for Honda RS250 A-kit 2001 - 2005 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 AA33052
Best overall performance
Quick to adjust
Good resistance to detonation

This insert does not fit into an OEM head, only a VHM cylinder head.