Duroc SD37 is the result of real-world EWS racing and good old-fashioned downhill thrash testing.

• Welded and eyeleted Duroc SD37 rims for maximum impact resistance, widestance tire shaping, and STR tubeless tire retention
• Straight-pull SRX hubs with high-strength Dual- Tooth pawls and precisionground steel axles
• Wheelsmith doublebutted spokes and brass nipples, precision tension balanced with SpokePrep assembly compound for longevity
• E-MTB approved for electric bicycles
• Cassette Body Type: Shimano Micro Spline
• Cassette Body Type: SRAM XD 11/12 Speed
• Color: Black
• Defined Color: Black
• Designed for ebike: Yes
• Hub/Brake Compatibility: 6-Bolt Disc
• ISO Diameter: 584 / 650b / 27.5″
• Rear Axle: 12mm Thru x 157mm
• Rim Width (Internal): 32
• Tire Type: Tubeless Ready
• Valve: Presta
• Wheel Size: 27.5″