Shimano xtr m9000 clincher mtb rear wheelthe 29 xtr race wheels offer new ust tubeless carbon laminated aluminum rims with 20mm internal widths for the lightweight wheelset you need to power both up and down the mountain features wh m9000 xtr race carbon laminate wheel designed to meet the pro criteria these race wheels are lightweight strong and durable with a tubeless compatible carbon laminate 23 9mm rims 28 butted 20 15 2 0mm stainless steel spokes titanium freehub body with quick paw