- New
DOMA Expansion Chamber for SHERCO SE 250, SE 300 2020-2025
€301.90
Tax Included
The expansion chamber of a 2-stroke engine: its shape determines where the engine makes its power.
DOMA offers this expansion chamber for SHERCO SE 250, SE 300 2020-2025. On a 2-stroke, the pressure wave reflected by the pipe helps fill the cylinder: the shape of the cones decides whether the engine pulls low down, in the midrange or at the top end.
Why change the expansion chamber?
The benefits:
- Replace a dented pipe: even a small dent changes the power curve.
- Choose an engine character to suit your riding.
- A clean new pipe, with no leaks at the welds or joints.
When should you replace the expansion chamber?
Dented or cracked pipe, broken mounting brackets or mixture leaking at the joints: replace it, the loss of power is often obvious.
Specifications and fitting tips
- Manufacturer part number: 100421
Cross-Mania tip: Fit new gaskets and springs and check that it touches neither the frame nor the radiator.
Spare parts and items to plan
- Exhaust gasket : ATHENA M753004400094 · ATHENA S410462012001
Compatibility
Check the exact model and year of your bike in the list below before ordering.
Fits:
SHERCO SE 250 2025
SHERCO SE 250 2024
SHERCO SE 250 2023
SHERCO SE 250 2022
SHERCO SE 250 2021
SHERCO SE 250 2020
SHERCO SE 300 2025
SHERCO SE 300 2024
SHERCO SE 300 2023
SHERCO SE 300 2022
SHERCO SE 300 2021
SHERCO SE 300 2020
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The expansion chamber of a 2-stroke engine: its shape determines where the engine makes its power.
DOMA Expansion Chamber for SHERCO SE 250, SE 300 2020-2025
€301.90
Tax Included