ICAN Road Bike Disc Brake Wheelset Carbon Clincher 38mm Rim Shimano 10/11 Speed ICAN 38mm rim is the ultimate lightweight all around road, cyclocross, and climbing rim Full carbon clincher, high strenth carbon for lightweight performance Extra wide 23mm rim incrased aerodynamics and improved handling Aero bladed spokes incerase wheel strength and improve aerodynamic Lightweight, smooth rolling and durable mountain bike hubs