YAKIMA - TubeTop, Bike Frame Adapter for Mast-Style Hitch Rack

Adapter that makes your bike compatible with most mast-style hitch racks; Bike Capacity: 1 bike weighing up to 45lbs

Installs quickly and securely to your seat post and stem to adapt a wide range of bikes for transport

Keeps your bike mounted solidly on single and dual arm mounts

Oversized diameter tubing and anti-rotation inserts for greater stability

Large molded collars are gentle with your bike stem and seat post