- New
VHM Cylinder Head Insert ref. AE32021-L for FANTIC XX 250 2021-2026
€90.90
Tax Included
The machined insert that forms the combustion chamber in a two-piece head: it sets the engine’s compression.
VHM offers this cylinder head insert for FANTIC XX 250 2021-2026. On a two-piece head, the insert (the "dome") forms the combustion chamber. Its volume and shape set the compression and the character of the engine.
Why change the insert?
The benefits:
- Match the compression to your riding and your fuel without replacing the whole head.
- A part machined from solid, to precise dimensions.
- Replace an insert marked or damaged by detonation.
When should you change the insert?
Signs of detonation, leaking O-rings or the wish to change the compression: the insert can be swapped in minutes, with new O-rings.
Specifications and fitting tips
- Manufacturer part number: AE32021-L
Cross-Mania tip: Fit new O-rings, tighten in a cross pattern to the specified torque and, with a higher-compression insert, use high-octane fuel.
Spare parts and items to plan
- Spark plug : see the selection
- Coolant : LIQUI MOLY 1 L · TWIN AIR
Compatibility
Check the exact model and year of your bike in the list below before ordering.
Fits:
FANTIC XX 250 2026
FANTIC XX 250 2025
FANTIC XX 250 2024
FANTIC XX 250 2023
FANTIC XX 250 2022
FANTIC XX 250 2021
Click on your bike to see all compatible parts.
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The machined insert that forms the combustion chamber in a two-piece head: it sets the engine’s compression.