The AERO 50 DT240 EXP/350 wheelset is built for performance with super light wheels, DT Swiss hubs, and Sapim CX-Ray spokes. It is crafted from 100% Carbon Fiber Toray T700 and T800 material, yielding a weight of 1486+-20g/pair. It is designed for tires in the 700 x 25-40mm range, making it the overall best choice for those seeking a strong, lightweight wheelset. Features Wide Rim Tech 25mm rim wide creates a better, more stable support, while the shape of the tire and rim together creates regular, stable air flow, in short, more aerodynamics, less attrition. provides an ideal basis for 25/28mm tires, the sizes currently popular. 2-Way Clincher Tubeless. Tubes or No-Tubes Use either traditional tires with tubes, or tubeless tires without tubes. Tubeless tires can provide lower rolling resistance and better protection from punctures. Sapim CX-RAY As light as a titanium spoke The CX-Ray still receives the best results in fatigue testing of any spoke. The CX-Ray aero spoke combines excellent aerodynamics with low weight and great strength. Not only are they more aerodynamic, they also make wheels lighter and stronger. Its unique strength and flexibility make the CX-Ray suitable for most bicycle disciplines. CX-Ray spokes are used by top bike racers and triathletes around the world. Sapim Secure Lock NipplesSapim Secure Lock nipple is a locking mechanism that prevents nipples from untightening.Secure Lock nipple can achieve a stable and well defi ned deformation on the thread. Each nipple has an additional locking resistance of 18 +/- 3 cNm. UCI Approved This wheelset has been certified and approved by the UCI (Union Cycliste Internationale), for use in UCI sanctioned road races. Purchase Notes: Please do use black rubber if using tubeless tyre. Tight the valve before pumping. Something you may want to know before purchasing: Warranty & Returns Specification Type Carbon Racing Bike Wheelset Material Carbon Fiber Toray T700 & T800 Size 700C Rim Finish: UD Matt Drills: 20/24 Holes Width: External: 25mm Internal: 18.35mm Depth 50mm Profile Clincher Tubeless Ready Hub DT240EXP/DT350SL Spoke Sapim CX-Ray Spokes Spoke Count Front: 20 Rear: 24 Spoke Pattern Front: Radial Rear: 2-cross Nipple Alloy Color: Black Cassette Compatibility Shimano 11 speed Wheelset Weight Total: 1486+-20g (DT350SL) Front: 653+-10g Rear: 833+-10g Total: 1414+-20g (DT240EXP) Front: 652+-10g Rear: 762+-10g Brake Surface 3K Twill Recommended Tyre Size 700 x 25-28mm Rider Weight Limit 232lbs/105kg Guarantee 2 years Free 1 set of skewer Carbon brakes pads Packing Size 81.5cm x 17cm x 65.5cm Purchase Notes Please do use black rubber if using tubeless tyre. Tight the valve before pumping.