The Shimano XTR M9000 XC 650B 27.5 12 X 142mm Tubeless Compatible Rear Wheel is designed to meet pro criteria. This race wheel is lightweight, strong & durable with a tubeless compatible carbon laminate 23.9mm rim. The rim is laced to a forged then anodized alloy hub shell, for maximum strength & long lasting good looks, with a titanium freehub body with quick pawl 36 point engagement internals for instant power transfer. The hub uses angular contact bearings designed to cradle the balls giving both radial & lateral support; they also offer precision bearing adjustment & easy maintenance. Double contact seals with internal grease sleeve to keep the elements out & the grease in. The Wide bearing placement gives excellent lateral rigidity further improving strength & durability. Compatible with 8, 9, 10 & 11 speed cassette sprockets & for 142 x 12mm dropouts.