Completely re-engineered using insights gleaned from more than 100,000 original Hydra hubs in the field, Hydra2 features a newly designed 65% thicker axle, larger 6903 bearings with new labyrinth seals that ensure bombproof durability under the most demanding conditions.Designed specifically for trail, enduro, and downhill riders with the strength to handle full-power ebikesScalloped flanges on Hydra2 j-bend hubs increase overall strength, and remove excess material for a lighter, stronger hubshellRevised axle design is 65% thicker with an improved stress washer designFull-contact radial lip seals paired with proximity dust shields keep grit and grime out, and lubrication inDurable 6903 bearings are used throughout for smooth, long-lasting performanceItem SpecificationsBearing TypeSealed CartridgeColorOrangeDefined ColorOrangeFront Axle15mm Thru x 110mmHub Drilling28Hub/Brake Compatibility6-Bolt DiscSpoke InterfaceJ-BendWeight157 Industry Nine Hydra 2 Classic Front Hub Front Hub UPC: 197769086595