Lightweight full carbon rim brings low inertia for instant acceleration and improved control21mm internal width maximises tire volume for improved confidence, efficiency and cornering grip42mm rim profile and flat spokes are wind tunnel proven for low wind resistance and excellent lateral stability at high speedMavic UST tubeless ready improves comfort, efficiency and tire installationRear wheels feature Mavic`s new Instant Drive 360 freewheelHigh quality hubs with dual seal, pre-load adjusted bearings 700CFT21Thru 12mmBlkCosmic S 42 DiscMavic Classic100BlkCLMavic Aero24HDblPVUPC/EAN/GTIN: 3701380914341