Campagnolo Shamal Ultra Rear 700c Wheel is an engineering masterpiece 15 years in the making. Restoring a legend and representing the absolute pinnacle of innovation in a high-end wheel the Shamal has no peer in terms of performance strength and durability. Select extrusions of alloy are first CNC machined to spec and then ground laboriously to make the flawless braking surface. The rim is then balanced dynamically removing any imbalance including the valve stem. The top of the rim is not drilled making the use of rim tape unnecessary which further lightens the system. The hub is made out of the finest machined aluminum and have carbon bodies. Specially designed oversized flanges maximize torsional rigidity. Light strong snappy and comfortable the bar has been raised. 21 rear spokes. Campagnolo 9 and 10 speed compatible or Shimano® HG 10 speed compatible only. The Rear wheel comes with a Aluminum Quick Release Dual-pivot Skewer / Lever and Wheel Bag. Rear clincher or tubular wheel weighs 790 grams. Available in the only color fitting this level of achievement.