The Industry Nine Sector Aluminum wheel pairs an extruded 6069 aluminum Hollow Bead rim with the Hydra2 System hub and I9's proprietary System Spoke, built as one connected unit rather than a standard hub and spoke pairing. Handbuilt in Asheville, North Carolina, the System build brings everyday reliability and balanced handling to trail riding without stepping up to carbon. What Our Gearhead(R) Experts Are Saying:"I notice the engagement the second I roll into a rocky climb and need power down now, not a quarter-turn from now. The hub and spoke work as a single system, so there's no lag between what my legs are doing and what the rear wheel does."