- New
DOMA Expansion Chamber for BETA RR 125 2021-2024
€276.90
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 BETA RR 125 2021-2024. 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: 100437
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 S410060012009 · ATHENA M753004300094
- Spark plug : NGK 7544 · NGK 4549
Compatibility
Check the exact model and year of your bike in the list below before ordering.
Fits:
BETA RR 125 2024
BETA RR 125 2023
BETA RR 125 2022
BETA RR 125 2021
Click on your bike to see all compatible parts.
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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 BETA RR 125 2021-2024
€276.90
Tax Included