The highly respected Zonda with its new 22.5mm wide rim accepts 25-28mm clincher tyres, giving increased performance, comfort and a more efficient tyre/rim interface. A new rim coupled with the same technologies that put the Zonda in a league of its own, make this wheelset one that punches far above its weight. The Zonda offers this added performance and wider profile while reducing its overall weight more than 10 grams. The Mega-G3 Spoke pattern is a type of spoke assembly that improves energy transfer between the hub, which reduces stress on the right-hand side which in turn increases the rigidity of the wheel. This is achieved by having twice as many spokes as the left-hand side. Features: Dynamic Balance rims, where every point of the rim is counterbalanced by an equal weight on the opposite side, offering maximum stability even at high speeds Differentiated rim height, 27mm front & 30mm rear (22.5mm internal width) MOMAG: the external rim profile is free of holes, so the structural integrity of the wheel is increased and there is no need for rim tape Adjusting lockring with micro setting, for accurate adjustment of the hub Aluminium hub & aluminium axle for low weight and high stiffness Oversized flange for increased torsional stiffness Aerodynamic spokes with exclusive Mega-G3 spoke pattern Self-locking nipples with anti-rotation system Weight: 1540g (CA) for Campagnolo Assembly The Zonda C17 Wheel is entirely hand built by a specialised Campagnolo technician and is checked in every tiny detail with electronic tools. This ensures that every wheel conforms to the high standards that Campagnolo pride themselves and will have unbeatable reliability. Tech Specs Spokes Spoke Count: 16 variable-section stainless-steel radial aero spokes (front) / 21 variable-section stainless steel aero spokes (rear) with a 2:1 spoke ratio on the drive side RDB - Rim Dynamic Balance Exclusive Mega-G3 spoke lacing pattern Anti-Rotation system Self-Locking nipples Rims Rim Profile: Differentiated - 24/27mm (front) / 27/30mm (rear) Width: 22mm Material: Aluminium Hubs Aluminium hub with black finish Width: 100mm Front / 130mm Rear Cup-and cone bearing system Steel Bearings Oversize flange Freehub: CA 9/10/11/12x In The Box User Manual Warranty Booklet Campagnolo Wheel Identification Card CPW451: WH17-ZOCFR CPW451A: WH17-ZOCFRX