Recessed and surface mounted track for v-groove rolling gates are available but the best choice will depend on the specific application and requirements. Recessed track offers a clean, flush appearance as the track is installed into a concrete foundation. Surface mounted track is installed on top of the driveway and is generally easier and less expensive to install. V-groove wheels that are internally mounted, recessed and surface mounted are available in both galvanized and stainless steel. Size options range from 2" lightweight wheels to 8" heavy duty wheels.