Aerodynamic and lightweight, the Thule Circuit Fork Mount Carrier makes a simple, reliable solution for carrying your bike on the roof of your car. Weekend trips and early morning race departures will involve fewer arguments and less stress with this user-friendly system, whose ease of use is based on an easy-to-install aluminum tray that locks onto your existing crossbars. All it asks of you is that you remove your front wheel, strap your rear wheel into the wheel cradle using the included straps, then slide the front skewer through the dropouts on your fork, and your bike will be safely secured for your upcoming voyage. The rack doesn't include a lock, but it's designed to integrate with Thule's One-Key lock cylinder easily if you'd like, and the system can be used with 15mm, 20mm, and Lefty forks, the latter requiring you to buy a separate adapter.