Vhm Cyl. Head Nsert 250sx `17-22, Tc250 `17-22 22.20 +0.50 1.60

This insert with 22.20cc volume is the VHM standard for KTM 250SX with 12° piston 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 AA33166 and VHM 12° piston APKT25021754A1. Best overall performance Quick to adjust This insert does not fit into an OEM head, only a VHM cylinder head. Use in combination with VHM 12° piston