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
Inserts must be ordered seperately. Use short spark plug (BR8ECM).
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