Moto Tassinari V Force 4 Reed Valve V4144-2 Uses symmetrical reed petals, no more inner and outer petals Incorporates the industries first and only patented snap together reed valve design.&nbsp; The entire assembly is completely screw free Custom air guides specific to each individual application ensures maximum airflow Utilizes and advances composite technology with an all new carbon fiver lay-up and resin system.&nbsp; This new lay-up was designed entirely around the reed cage design of the VForce 3 for superior performance and response New improved reed stop design completely eliminates the need for retaining screws.&nbsp; This feature now removes any possible chance of failure