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.
Use VHM standard insert:
AE32305-E: RR300 2T (2013 - 2017 flat top piston D72)
AE32295-E: RR300 2T, RR300 2T Racing (2018 - 2021 dome piston D72)
AE32328-E: RR300 2T 2022 - 2024, RR300 2T X-Pro 2025, RR300 2T Racing 2022 - 2023 (dome piston D73) / XTrainer 300 2T 2019 - 2025
- More engine power
- Better heat transference
- More resistance to detonation
- Exchangeable combustion chambers available
