Rolf Prima Elan ES Disc Clincher Front Road WheelRolf Prima's Elan ES Disc Clincher Front Road Wheel is an alloy training wheel that will help you train with comfort and reliability without a weight penalty. Throw in the supreme stopping power of a disc brake and you'll be surprised by the impressive performance of this Elan ES Disc wheel Elan ES Disc Clincher: Aero Alloy Training WheelThe Elan ES Clincher front wheel is lighter than most alloy training wheels at 750 grams. Aerodynamic and durable, this aero front training wheel features Rolf Prima's Paired Spoke Technology for an engineering edge alongside their Delta Rim Technology™, to slice through the wind 24 round race spokes increase the strength and durability of this alloy wheel, but you'll still enjoy the benefit of speed as this Elan ES wheel accelerates quickly on the hills and cuts through the wind with ease Features:Material: AlloyAerodynamicDurableLightweightResponsiveTubeless compatible rimIncludes rim strips and QR setWeight: 750gTechnical Specification:Brake Type: DiscSpoke Count: 24Spoke Type: Round raceRim Depth: 22mmRim 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 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.