The wider C17 rim design of the Zonda ensures a more efficient shape of the tyre, improving cornering grip and safety while reducing aerodynamic drag and rolling resistance. A seemingly small increase in width offers a surprisingly different riding experience, one that is sure to leave any cyclist convinced that a wider tyre size is the way forward.The asymmetric rim profile offers superior aerodynamics without sacrificing stability, the precision milling eliminates excess material reducing weight, the Rim Dynamic Balance Technology ensures that every point of the rim is counter-balanced by an equal weight on the opposing side, providing maximum stability even at high speeds and the MoMag Technology creates a tyre bed free of spoke holes, eliminating the need for rim tape and offering structural superiority. The wheels are laced with 21 stainless steel spokes in the MEGA G3 Pattern providing reinforcement on the braking side at the front, and the cassette side at the rear; creating the perfect balance of spoke tensions on both sides of the wheel, reducing stress, increasing traversal rigidity and improving the transmission of power to the wheel. Asymmetric rim profilePrecision millingRim dynamic balanceMoMag technology21 Spokes in stainless steel with Mega-G3 systemShimano / SRAM Freehub Aluminium oversize flangeCup & cone bearingsQuick release or 12mm bolt through axle Weight: 1675g