The BD-Speedpants are now available for the following models: BD-4B, BD-4C, RV-7, and RV-10 (RV-10 available through LoPresti SpeedMerchants). The BD-Speedpants are unique because they are the only wheel pants that completely enclose the tire. Even the smallest portion of the tire exposed creates drag. With the BD-Speedpants we have eliminated that drag! They are hydraulically operated with a single lever operating both Speedpants. Nose Wheel Speedpants will be available in Mid December 2010 and will operate with the same lever. We are in the process of licensing a company to manufacture and distribute the BD-Speedpants for the RV Line.