Crank Brothers Cobalt 3 29" Black/Iron 15mm Front QR Rear These Cobalt front wheels are set up for 15mm thru axle Tubeless-compatible rims have no spoke holes, maximizing strength: AL-6061-T6 with welded joint Straight-pull 2-piece spokes are laced in a "mirror" spoke pattern attached to the rim via a rim bushing Hubs use a 3-pawl system and have sealed cartridge bearings Series 3 wheels have an alloy freehub body and axle 2 year manufacturer warranty Valve stems are included with all wheelsets Rims are first anodized black and then the spine is re-anodized with the accent color, which matches the nipples and rim bushings Includes two step quick-release levers 19mm internal rim width; 1.9-2.3" recommended tire size