From black diamond bike park runs to flow trails in the foothills, the Industry Nine Classic Enduro S Carbon Boost Wheelset was designed to give us an exceptional ride feel and performance all over the mountain. Featuring a stout and durable body and a lightweight carbon fiber layup, the Enduro S Carbon Wheelset was born to shred both up and down. The 31mm internal diameter rim allows us to run tires up to 2. 8 inches wide for more traction and confidence, and the premium carbon fiber layup ensures we have a stiff and lightweight wheelset that will dampen vibrations from the trail for predictable handling. To make things even better, I9 threw in their flagship Hydra hubs for exceptional performance and engagement.