Rolf Prima Ares3 ES Carbon Clincher Road WheelsetAttack on the climbs until you get a gap with this Ares3 ES Carbon Clincher Road Wheelset. Rolf Prima's wheelsets are engineered with clinical precision for optimal performance in aerodynamics at the lightest possible weight Carbon ClimberThis Ares3 ES Carbon Clincher Road Wheelset has been produced for climbers. As such, they are remarkably light: 610g at the front with 830g at the rear. Factoring in Rolf Prima's Paired Spoke Technology for an engineering edge, you get a wheelset which has had the pulling forces neutralised. The result? Lighter wheels with a smoother roll alongside a major boost in aerodynamics. In terms of performance benefit, this wheelset is performance-ready and ultra-light so you can attack and counter-attack on the climbs until you get a gap. Just make sure you make it stick.A TdF3.0 Hubset is included to shave further weight. Rolf Prima's Patented Differential Flange Diameter creates a wheel that has enhanced durability. Bladed CX spokes are split at a ratio of sixteen-to-twenty front-to-back and add the finishing touch to this understated Ares3 ES Carbon Clincher Road Wheelset to offer you the complete carbon-climbing package. Features:Material: Carbon (rim); CNC Machined Titanium (freehub)AerodynamicStrongLightweightResponsiveIncludes carbon- specific brake pads, rim strips, valve extenders, and QR setWeight: 1440g (610g/830g)Technical Specification:Hubset: TdF3.0 Freehub: Shimano/SRAM or Campagnolo 10/11-speedSpoke Count: 16/20Spoke Type: Bladed CX SpeedRim Depth: 35mm Carbon ClincherRim Width: 25 5mm (maximum)Wheel Size: 700cKey TechnologyPaired Spoke Technology: Rolf Prima's Paired Spoke technology broke new ground when it was introduced in 1997. Bringing the spokes to the rim in pairs neutralises the left and right outward pulling forces which allows them to build true wheels on lighter rims with fewer spokes. Fewer spokes and lighter rims help create increased aerodynamics and faster performing wheels Differential Flange Diameter™: Rolf Prima's patented oversize non-drive Differential Flange provides the leverage to transmit drive torque in the rear wheel to the non-drive spokes, thereby increasing the number of torque absorbing spokes. Buy Rolf Prima Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.