RV Bike Cover gray. Protects bicycles from the elements while mounted to a bike rack, it covers up to three full size bicycles. Tough polyester fabric designed offers durability and weather protection. It features clear see-thru panels around front and rear wheels, and rear zippered access for use with hitch mount racks, trays and hanging racks. Full length air vents helps prevent lofting. Reflective logo for increased visibility. D-rings for attaching cinch or tie down strap.