27.5" DUROC SD42 EXPERT [DISC] - Rim Technology: SUNringlè Tubeless Ready. - Wheel Size: 27.5". - Outer Rim Width: 42mm. - Inner Bead Width: 36mm. - Rim Joint: Welded. - Free Hub Body: Alloy Shimano Micro Spline. - Hub: SUNringlé SRX. - Hub Spacing: [Front] 110x15 / [Rear] 148x12. - Spokes: Wheelsmith Straight Pull DB14. - Nipples: Wheelsmith Brass. - Includes: STR Tubeless Valves, STR Tubeless Sealant. - Hole Count: 28. - Weight Rim: 595g. - Weight Wheel: [Front] 985g / [Rear] 1165g.