The Kuat NV 2.0 Hitch Rack Add-On is compatible with the 2" NV 2.0 or NV 2.0 base to expand your bike rack from a two-bike carrying capacity to a four-bike carrying capacity. With the foot-assisted pivot system, you're able to lower the bike rack down for easier loading and unloading, while the adjustable tire cradles offer a dialed-in fit for stability. Plus, you'll enjoy a snug fit between the hitch and bike rack thanks to the hand-tight cam—allowing for greater stability and less wobbling.