The world famous golden VHM head with exchangeable combustion chamber is specially developed for optimal power output during the whole race and has an improved water duct. It's manufactured from a high quality alloy and O-rings are used for the sealing.
Use VHM standard insert:
AE32167-C (2009 - 2012)
AE32167-H (2013 - 2023)
AE32167-059 (2009 - 2023 for 12° VHM piston APKT06521722)
Use the insert chart as a general guideline to select the insert depending on the fuel, track and elevation.
- More engine power
- Better heat transference
- More resistance to detonation
- Exchangeable combustion chambers available
