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