ICAN Carbon 38mm Tubular Wheelset Road Bike Only 1330g/set Best all around aerodynamic and lightweight carbon rim-38mm rim is our lightest, and most crosswind stable wheel. Recommended For : Road Bikes, Triathlon Bikes, Time Trial Bikes AERO bladed spokes incerase Wheel Strength and improve aerodynamic ICAN standard road bike hub - Shimano 10/11 speed 6 pawls 2 year warranty for manufacturer defects, lifetime crash replacement program (discount for new wheels)