CAMPAGNOLO SHAMAL ULTRA Wheels Clincher SHIMANO Cassette – Clincher 1449 gr. - The SHAMAL TM ULTRA TM C17 represents the same fantastic performance that has made it THE go to aluminum race wheel for the better part * of two decades while adding even more versatility and performance. The wider p * rofile meets the C17 standard and is perfect for use with the * increasingly popular 25/28mm tire sizes. This rim/tire interface proves to be more aerodynamic when compared to the same size tires mated * to a C15 rim. The C17 also allows for a more surefooted grip in addition to increased comfort while increasing rigidity and thus reactivity at * the same time thanks to its wider stance and optimized material usage. TOROIDAL MILLING: * reduces the peripheral weight of the rim – makes * the wheel extremely reactive. * DYNAMIC BALANCETM * 2-WAY FITTM PROFILE: * allows you to use either the classic clincher or the * innovative tubeless tire. * ULTRA-FITTM: * easy tire mounting – maximum safety – less * friction – less energy dispersion – improved * performance. * MOMAGTM: * allows the external profile of the rim to be free of * holes. * DIFFERENTIATED RIM HEIGHT * FRONT (24 - 27 mm) AND REAR (27 - 30 mm) * SPOKES ANTI-ROTATION SYSTEMTM: * keeps the spokes in the position of maximum * aerodynamic penetration. * SELF-LOCKING NIPPLES: * allow the ideal spoke tension to be maintained * at length, eliminating friction on the rim. All * this translates into constant high performance * throughout the life of the product. * EXCLUSIVE MEGA-G3TM SPOKE PATTERN: * perfect balance of spoke tension on both sides of * the wheel. Reduces stress, increases transversal * rigidity and the transmission of power to the wheel. * Mega-G3TM eliminates vibrations even with “heavy” * cyclists. * AERO SPOKES IN ALUMINIUM: * maximum aerodynamic penetration -lower weight * and greater reactivity. * USBTM CERAMIC BALL BEARINGS: * reduces friction, provides greater smoothness, and * maintains performance over time. * CARBON FIBRE HUB BODY: * high degree of lateral stiffness –reduces the * weight to the minimum. * ALUMINIUM AXLE * low weight, high stiffness. * OVERSIZED FLANGE: * increases the torsional stiffness, increasing * reactivity at each change of pace of the cyclist. * DIFFERENTIATED HUB DIAMETER FRONT AND * REAR: * optimized for structural integrity and performance. * Small front hub aids in aerodynamic effi ciency.