27.5" DUROC 30 EXPERT [DISC] - Rim Technology: SUNringlé Tubeless Ready. - Wheel Size: 27.5". - Outer Rim Width: 30mm. - Inner Bead Width: 26mm. - Rim Joint: Welded. - Hub: SUNringlé SRX. - Free Hub Body: Alloy Shimano Micro Spline, Sram XD. - Hub Spacing: [Front] 100xQ/R & 100x15, 110x15 / [Rear] 142x12 & 135XQ/R, 148x12. - Spokes: Wheelsmith Straight Pull DB14. - Nipples: Wheelsmith Brass. - Includes: STR Tubeless Valves, STR Tubeless Sealant. - Hole Count: 28. - Weight: Rim: 440g. - Weight Wheel: [Front] 843g / [Rear] 943g.