Rolf Prima Vigor Alpha Clincher Road WheelsetDo you want to climb with ease and sprinter faster? If so, look no further; become speed personified with Rolf Prima's Vigor Alpha Clincher Road Wheelset. Accelerate like a bullet from a gun with this lightning quick aero alloy wheelset Vigor Alpha Wheelset: Lightweight, Aero AlloyAspire to be the King of the Mountain and first over the finish line with this ultra-fast and lightweight Vigor Alpha wheelset. The combined weight of 1.47 kilograms is split between 645 grams at front and 825 grams at the rear. Weight savings are possible through Rolf Prima's Paired Spoke Technology - this unique engineering process serves to neutralise pulling forces to offer a lighter and smoother roll. In turn, you receive a huge boost in aerodynamic performance The Vigor Alpha wheelset supplies these 32mm deep alloy wheels with pure speed through the assistance of Rolf Prima's TdF5.5 Hubset. The hubset is manufactured with ABI zero ceramic bearings to save further weight and increase both rolling performance and durability. Rolf Prima claims the TdF5.5 hubset delivers a 20% gain in lateral stiffness, which complements the aerodynamic engineering of the Vigor Alpha wheelset The front and rear wheels have a 14/16 spoke makeup, of course the spoke count has been researched and maximised for each possible lightweight, aerodynamic advantage. Be the King of the road and conquer your local Road Races and Sportives with the lightest aero alloy wheelset on the market, the Rolf Prima Vigor Alpha Clincher Road Wheelset Features:Material: Alloy (Rim); CNC Machined Aluminium and Titanium (Freehub); Ceramic (Bearings)AerodynamicDurableLightweightTubeless compatibleSmooth ceramic bearingsIncludes rim strips and QR set where applicableWeight: 1.47kg (Total): 645g (Front); 825g (Rear)Technical Specification:Brake Type: CalliperHubset: TdF5.5 Hubset with ABI Zero ceramic bearingsFreehub: Shimano/SRAM 10/11-speedSpoke Count: 14/16Spoke Type: Bladed CX-RayRim Depth: 32mmRim Width: 23mm (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 Delta Rim Technology™: In skydiving, the Delta track is the fastest position for gaining forward airspeed. So, Rolf Prima mirrored this observation and adapted it for their Delta profile, which takes that cue using increased width and sidewall shaping to improve airflow and stability in straight on and crosswind situations. This wider rim is not just faster, but the additional tyre support improves cornering and handling in all riding conditions Buy Rolf Prima Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.