Built for speed and a truly versatile wheelset, gravel to XC Crest MK4, 25/28.4mm internal/external width, disc specific aluminum asymmetric clincher rim features Bead Socket Technology (BST-Asymmetric), improves tire performance at equivalent pressures and allows fewer pinch flats WideRight: Provides the optimal volume without distorting the tread pattern or the side knobs so that they are in the correct position for cornering. Proper tire profiles not only allow for optimal tire performance but also allows the tire to do its secondary job of protecting the rim as well as the tire sidewall Stan&';s M-Pulse hubs Sapim D-Light spokes Front and rear axle conversion kits sold separately Includes Stan&';s tubeless valves and Stan&';s yellow tubeless tape Optimal WideRight tire sizing up to 2.3" Size: 29" Rim: Crest MK4 disc clincher Hub: choose; Pulse Centerlock disc, or Pulse IS disc Front Axle/Spacing: choose; 12x100mm Thru Axle, or 15x110mm "Boost" Thru Axle Rear Axle/Spacing: choose; 12x142mm Thru Axle, or 12x148mm "Boost" Thru Axle Cassette/Driver: choose; Shimano HG, Shimano Micro Spline, Sram XD/XDR Hole: 32h Spoke: 14/16/15g Nipple: alloy