Thule 515 Prologue Fork Mount Rooftop Bike Carrier (2-Pack) 515 prologue fork mount rooftop bike carrier 2-pack carries two bikes with two prologue fork mounts Single wall aluminum wheel tray fits tire widths of up to 2.6 inches Secure loading and unloading with easy to operate stainless steel locking skewer Sleek and stylized high-strength nylon composite mounting head Limited lifetime warranty