This Two-bike V-Rack is compatible with Jeep, motorized RV, and most other vehicles for efficient use of existing space above the tire. Fits 15 inch and larger tires only (may not be used with smaller rimmed tires) using Tire teeth that “bite” base mount grip over tire and secure with two ratchet straps wrapped over tire and rim (tire must be uncovered for use). Maximum load weight limit is 35 lbs per bicycle and 70 lbs overall capacity. The Tirebiter has a modular lightweight 22 lbs design with removable wing support arms for compact storage that are lockable with cable lock (cable lock not inlcuded). Upper and lower wheel cradles with foam pads provide four-point wheel touch only grip and bike freeze for Zero-G stability with Foam pads that protect bike-to-bike and rack contact. Rated for motorized vehicles only, not for use on Travel Trailers. TireBiter is a member of an integrated family of Let's Go Aero V-Rack products for the bicycle lifestyle, offering cross-platform solutions for Transit, Storage, and Organization.