The Midnight Special is an endurance road bike designed to provide comfort and speed on those all-day rides that extend well beyond fresh pavement. It excels on pot-holed deteriorating pavement and the occasional long stretch of gravel. The Midnight Special's 700c tires eat up road chatter and absorb all the bumps in the road for a much more comfortable ride. 100% Surly Chromoly frame main triangle is double-butted; 1-1/8" threadless Chromoly forkRack fender and three sets of water bottle mountsFlat-Mount disc brakes44mm head tubeTire Clearance: 27.5 x 2.35" (w/o fenders) 700c x 42mm (w/o fenders) 650b x 50 (w/ fenders) 700c x 38mm (w/ fenders)