The Thule Frame Adapter adapts step-through, BMX, and unconventional frames for use with hanging-style hitch and strap mount bike racks. Its telescoping design adjusts from 18" to 30.5" to accommodate most frames. Featuring new push-button clamps, it allows for fast installation and removal. Molded rubber pads safeguard your bike’s finish while ensuring it stays securely centered on rear-mounted racks. Durable rubber collars provide a safe and reliable attachment to the bike’s stem and seat post.