Mavic cosmic pro carbon sl tubular wheelsetthe cosmic pro carbon sl is a superlight and super strong carbon tubular aero wheel favoured by racers for the toughest classics races its an ultra dynamic ride thanks to low weight low inertia and high lateral stiffness featuresrimsmaterial 3k carbon fibresheight 40mmdrilling traditionalbrake track carbon with itgmax technologyvalve hole diameter 65mm etrto size 28 tubularspokesmaterial steelshape straight pull bladed double buttednipp