Originally Posted by
Seattle Forrest
GT Grade is $1,750 in 105, and full carbon, at Competitive Cyclist. Jenson has it for $2,200 with Ultegra, which is hydraulic (not sure about 105?) and also comes with carbon bars and seatpost. They're a little bit unclear on the clearance but probably 38 or 40 mm.
I have 36mm Clements on my Grade and that's the biggest it will fit comfortably on the stock rims. If you can squeeze on 38's or 40's there will be no clearance for mud or debris of any kind.