Mavic cosmic pro carbon clincher road wheelsetthe best value carbon wheel tyre system the cosmic pro carbon clincher wheelset provides the best balance of low frontal drag and crosswind stability featuresrimsmaterial maxtal and 12k carbon fibreheight 45mmjoint supdrilling traditionaldisc brake specific profileweight reduction ismvalve hole diameter 65 mmtyre clincherinternal width 17mm etrto size 622x17cspokesmaterial steelshape straight pull bladed double buttednipples aluminiu