This is the 'CasaMaxiFlow' mega-airhose for 25-26mm size carburettors (such as the Dell'Orto PHBL25). This has been meticulously studied to ensure that the airflow is not obstructed in any way and when used in conjunction with the MaxiFlusso manifolds, the airhose will NOT touch the inside of the scooters' sidepanels. Designed to be used in conjunction with the Casa Performance foam Powerflow filter X63.
The measurement of the opening on the inside is 38-39mm.
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