VHM Cyl. head nsert NSR250 MC16 `86-87 / MC18 `88-89 12.40 +1.95 1.00

This insert with 12.40cc volume is the VHM standard for Honda NSR250 MC16 / MC18 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 AA33191 or AA33192.

• Best overall performance
• Quick to adjust