ENVE Composites XC28 Rear Wheel - 29" 12 x 148 Center-Lock Micro Spline Innerdrive 80pt BLKRACE READY, TRAIL TOUGH. Born from the development of the latest M Series and inspired by the proven durability of the AM30, the new XC28 brings ENVEs carbon expertise to riders who want high end performance at a more accessible price. The XC28 is aimed directly at the needs of todays cross country and trail riders who want a light, responsive, and durable wheelset. TECH SPECS Axle Type 12mm TA Freehub Body Shimano Micro Spline Hub Model ENVE