Which insert for what▾
AE32297 inserts for the VHM head AA33184
VHM standard
In general: smaller volume = higher compression = more pull but better fuel needed; larger volume = lower compression, the engine revs out more freely and tolerates pump fuel. If in doubt, take the standard.
Based on the VHM manufacturer charts.
VHM head insert Beta RR 125 2T 18-24 / Beta RR 125 2T Racing 19-24 / Beta RR 125 2T X-PRO 25-27 / Beta RR 125 2T RACE 25-26 – C 10.80 cc
SKU: AE32297-C
Insert (combustion chamber)
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Which insert for what▾
AE32297 inserts for the VHM head AA33184
VHM standard
In general: smaller volume = higher compression = more pull but better fuel needed; larger volume = lower compression, the engine revs out more freely and tolerates pump fuel. If in doubt, take the standard.
Based on the VHM manufacturer charts.
Exchangeable combustion chamber (insert) for the VHM cylinder head AA33184. Chamber volume 10.80 cc. 🔴 The insert fits ONLY the VHM head AA33184 — it cannot be fitted into the OEM head. For the stock (OEM) piston. Compared with the VHM standard (11.00 cc) it has a smaller volume, i.e. higher compression: the engine pulls harder but needs higher-octane fuel, otherwise it may detonate. Quick to change — the insert simply sits in the head and seals with O-rings. The last characters of the part number are engraved on the insert, so you cannot mix them up. Fits: Beta RR 125 2T (2018–2024); Beta RR 125 2T Racing (2019–2024); Beta RR 125 2T X-PRO (2025–0); Beta RR 125 2T RACE (2025–2026).
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