Mavic ksyrium pro road rear wheelthe ksyrium pro uses the same technology as the ksyrium pro sl which has set new standards for modern wheel building this wheel is equally at ease on fast rolling terrain or mountain courses and for a couple of hours or an all day adventure featuressize 700c material maxtal aluminium hole count 20 axle qr bearings adjustable sealed cartridge bearings weight without tyre 845gmax weight supported including bike 120kg key technologies fts l force tr