Rolf Prima Tandem Disc Clincher Front Road WheelRolf Prima's Tandem Disc Clincher Front Road Wheel has held the top spot for tandem wheels for some time due to the reliable, durable performance Tandem Disc Clincher: Aero AlloyThe Tandem Disc Clincher Front Road Wheel weighs in at a reliable and strong 835 grams. Featuring Rolf Prima's Paired Spoke Technology for an engineering edge alongside their Delta Rim Technology™, which chops through the wind for an aerodymanic performance. The Tandem Disc Clincher Front Road Wheel is also comfortable and engineered for durability Features:Material: Alloy (Rim); CNC Machined Electroless-Nickel Plated (Freehub)AerodynamicDurableConsistent performerIncludes rim strips and QR set where applicableWeight: 835gTechnical Specification:Brake Type: DiscHubset: Tandem DiscSpoke Count: 20Spoke Type: Bladed CXRim Depth: 33mmRim Width: 22mm (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.