The disc specific version of the famous ksyrium elite light strong and versatile weight 1670 grams pair without tyre improved ride quality and lightweight 17mm internal rim width increases air volume ism 4d superlight rim double butted steel spokes keep the weight down for a fast and comfortable ride sustainable efficiency durability fore drilled rim secures the spoke rim interface instant drive 360 freewheel system delivers low friction with fast engagement a high grip griplink front tyr