Shimano Deore XT WH-M775 MTB Wheelset 26" UST 9mm Increased lateral rigidity Ultra thin wall alloy rim features brazed spoke hole reinforcement - better strength and lower weight New seal design improves bearing life 400% w/less seal drag than cartridge bearings UST tubeless compatible (can be used with tubes as well) PLEASE READ DESCRIPTION CAREFULLY AND CONTACT US FOR ADDITIONAL QUESTIONS