Any ave the Kuat Sherpa 2 rack and carry a fat bike that can share their experience? I want to carry a Trek Farley with 4.5” tires, looks like all I need is longer rear tire strap. The Cradles the tires sit in do not look wide enough. I like the Sherpa because it is only 32 pounds and bike will not contact the frame, only wheels. Just worried about carrying a fat bike.