Quality entry-level 27.5'' MTB disc brake wheelset with 100mm / 141mm QR axle spacing 141mm O.L.D. rear wheel is the quick-release version of the Boost spacing & a growing standard in entry level MTB Tubeless-ready Alex MD19 rim is strong and lightweight (470g) Shimano MT200 hubs feature adjustable cup-and-cone bearings for trouble free long term performance 32 black stainless steel spokes and brass nipples for long term reliability Shimano HG freehub body, compatible with most 8 to 10 speed cassettes and some 11 and 12 speed MTB cassettes. See ''Documents and links'' for more details on compatibility. 
