VHM Sealkit cylinder head for Yamaha YZ250 99-21 / Fantic XX250 21-

VHM Head Insert (20.60cc, +2.80, 1.50) for Yamaha YZ250 99-21 / Fantic XX250 21-

Size: Standard 20.60cc, +2.80, 1.50

• Best overall performance

• Quick to adjust

• Good resistance to detonation

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

VHM Cylinder Head for Yamaha YZ250 99 -24 / YZ250X 16-22 / Fantic XX250 21-24

• More engine power

• Better heat transference

• More resistance to detonation

• Exchangeable combustion chambers available

Inserts must be ordered seperately