Strategic cut-outs reduce overall weight. Sleeved, single wall, disc only. Sun Tubeless Ready (STR) technology. Easiest wide tire tubeless setup in the industry. Laced up to SRC hubs with time tested double butted Wheelsmith spokes. Flange shape and diameter improves balance and spoke tension. Rear axle increases durability and reduces flex. Smaller hub bearings for reduced overall weight. Rear wheel includes XD and Shimano Micro Spline driver bodies . Includes nylon rim strip, STR tubeless tape, STR tubeless valve and STR sealant