VHM Cyl. head nsert CR500R `89-01 decompression valve 48.00 +6.20 2.50

This insert with 48.00cc volume is the VHM standard for Honda CR500R 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 AA33200

• Best overall performance
• Quick to adjust