The F.A.S.T. Tool allows for easy adjustment of Vision aerobars that are equipped with the F.A.S.T. system. The unique grooved extension allows the aerobars to be adjusted without removing the cables. Scale marking allows exact positioning of extensions. Extensions can be rotated to different angles. Regardless of the position, the back of the extension does not protrude behind the wing bar. Cable routing is internal for both braking and shifting. Shift cables are internally routed, and exit in the back, for clean air flow. Adjustment is accessible even with cables installed, via a supplied tool.