The Hydra 2 Enduro Carbon is Industry Nine's most advanced enduro race wheelset ever. Front- and rear-specific carbon layups offer both a comfortable ride and the durability enduro racing demands, while keeping weight low to conserve energy on those long days in the saddle. Hydra 2's immediate engagement hub lets you get on the gas quickly when the trail transitions, saving precious seconds that could put you on the podium.6 Pawl Hydra 2 Freehub Body provides a groundbreaking 870 P.O.E. Hydra 2 Freehub body engages every .41 degrees yielding telepathic controlCarbon wheels employ the DUO concept featuring a wider, more compliant front rim maximizing tire contact patch and to deliver a more supple ride quality; while the rear rim is stronger boasting a lay-up designed to shrug off impactsPremium Carbon construction is the result of collaboration with We Are One, I9's exclusive premium carbon range of rims employ hookless construction for maximum impact resistance and carry a limited lifetime warrantyStraight pull, integrated nipple, one-piece aluminum spokes that thread directly into the hubshell resulting in a solid, flex-free junction. No special tools or service procedures required32 hole Mountain System hub and spoke chassis forms the foundation for a versatile, strong and stiff wheelsetCompatible with Tubeless or Tube-Type Clincher tires in the 2.3 - 2.6" width rangeE-bike approved, full power Class-1 bikesItem SpecificationsCassette Body TypeShimano Micro SplineColorBlackDefined ColorBlackDesigned for ebikeYesFront Axle15mm Thru x 110mmHub/Brake Compatibility6-Bolt DiscISO Diameter622 / Road / 29"Rear Axle12mm Thru x 148mmRim MaterialCarbonRim Width (Internal)32.5F/31RTire TypeTubeless ReadyValvePrestaWheel Size29" Industry Nine Hydra 2 Enduro Carbon Wheelset Wheelset UPC: 197769597084