This insert with 5.40cc volume is the VHM standard for KTM 65SX 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 AA33217 and VHM 12° piston APKT06521722 and OEM base gasket 0.70mm + extra base gasket 0.20mm
Use the insert chart as a general guideline to select the insert depending on the fuel, track and elevation.
- Best overall performance
- Quick to adjust
- Good resistance to detonation
Raise cylinder with 0.20mm. This insert does not fit into an OEM head, only a VHM cylinder head.
