Designed for bike enthusiasts and family adventurers, the Yakima HoldUp Plus 2 Hitch Bike Rack Extension is the perfect solution to expand your bike-hauling capacity. This extension transforms your HoldUp carrier from 2 to 4 bikes, making it ideal for family outings or group rides with friends.Crafted with the StrongArm design, this extension securely fastens bikes at the wheels, preventing scratches and damage to paint and carbon frames, ensuring your bikes stay safe and protected. The HoldUp Plus 2 accommodates a variety of wheel sizes, from 20 to 27.5 inches, with tires up to 3 inches wide, and even 29-inch tires up to 2.5 inches wide. With a wheelbase capacity of 48 inches, it can handle bikes with disc brakes, through axles, and full suspension.Convenience is key with this extension, as it tilts down effortlessly even with bikes loaded, providing easy access to the rear of your vehicle.