The Industry Nine Triad Aluminum wheel is built for enduro riding and the heaviest days on the trail, pairing an extruded 6069 aluminum Hollow Bead rim with the Hydra2 System hub and I9's proprietary System Spoke. The wider 30mm internal width and reinforced rim profile hold up to bigger impacts and support higher-volume tires at lower pressure than a standard trail wheel. What Our Gearhead(R) Experts Are Saying:"I've cased landings hard enough to feel it in my hands and the wheel just keeps rolling true. The hub and spoke work as one piece, so the engagement I get on a rocky climb is the same engagement I get after a rough descent."