The Campagnolo Zonda wheelset has become somewhat of a staple in the Campagnolo wheelset range. While it won't be seen under the bikes that will roll down the streets of Paris on the last stage of the Tour, it has become a victorious wheelset in other ways. It has won over many hearts and souls as it is one of the most reliable wheelsets available and that reliability doesn't come with any reduction in performance. The Zonda is such a safe bet for your time in the saddle that it has become one of the best sellers of all times for Campagnolo. With performance above and beyond any other wheel in its class, in addition to reliability that would be the envy of any wheel, seeing the Zonda mounted on even top professionals training bikes doesn't seem out of place at all. With a wheel so dialed in, so universally appreciated and so successful the engineering staff at the Campagnolo headquarters in Vicenza made every effort to maintain all of the performance and durability characteristics of this fantastic model while incorporating improvements where possible. Building upon such a universally appreciated wheel was to be no easy task and after much consideration an improvement strategy similar to that of the Shamal Ultra wheel upgrade announced earlier this year was implemented. The beloved Zonda has been redesigned with a new C17 rim design 17mm internal rim width for a more efficient tire profile when using 25mm and larger tires Differentiated rim height 24mm F, 30mm R , precision milling between spokes to save weight Trademark Mega G3 spoking on the rear wheel for greater torsional stiffness and better power transfe New adjusting lock ring with microsetting for easier and more precise bearing adjustment