Kuat Phat Bike Kit The Kuat Phat Bike Kit is a convenient set of additional tire straps that allow you to take along your fat bike on your Kuat hitch rack. The Phat Bike Kit can accommodate up to 5" wide tires and is compatible Kuat NV, NV 2. 0, NV Core, Sherpa, Sherpa 2. 0, Transfer family and Trio racks. The kit includes a ratcheting rubber tire strap extender for the rear tire and a secondary Velcro strap for the front tire. Features Includes ratcheting rubber tire strap extender for rear tire and a secondary Velcro strap for the front tire Compatible with Kuat NV, NV 2, NV Core, Transfer, Sherpa, Sherpa 2. 0 and Trio | Kuat | Phat Bike Kit Strap Extender & Front Tire Strap | Rubber