The Industry Nine Hydra 2 Front Hub is completely re-engineered for uncompromising strength, durability, and performance. Built using real-world insights from over 100,000 original Hydra hubs, the Hydra 2 features a revised axle design that is 65% thicker, paired with larger 6903 bearings and advanced labyrinth sealing to withstand the most demanding riding conditions. Designed for trail, enduro, downhill, and full-power e-bike use, this Boost front hub delivers exceptional stiffness, reliability, and smooth rolling performance without unnecessary weight. Features: Re-engineered Hydra 2 front hub built for trail, enduro, downhill, and e-bike riding 15 x 110mm Boost spacing with 15mm thru-axle compatibility Revised axle design is 65% thicker for increased strength and durability Larger 6903 bearings provide smooth, long-lasting performance Advanced labyrinth seals with full-contact radial lip seals keep dirt and moisture out Proximity dust shields help retain lubrication and extend bearing life Scalloped j-bend flanges increase overall strength while reducing excess material Lightweight yet robust hubshell designed for aggressive riding conditions