Designed to conquer technical singletrack while striking the ideal balance of weight, durability, and value, the Hydra2 Sector Aluminum 6-Bolt Wheelset is ready for all-day adventures. The We Are One Sector rim (formerly i9 Trail S V2) features a wide, hollow bead wall that guards against pinch flats. The Hydra2’s near-instant engagement gives you a quick burst out of corners and up climbs. With i9's rugged straight-pull aluminum spokes, this wheel is a no-compromise choice, built to handle long hours in the saddle without fail. Features A 65% thicker axle that’s been redesigned to dissipate stress more effectively Larger 6903 bearings throughout , and a new labyrinth channel and full-contact radial lip seal to keep out elements that cause premature bearing wear Quicker 0.41° engagement and 60% less coasting drag than its predecessor A new, foolproof design to ensure consistent bearing preload, regardless of variations in axle tightness Larger, 5.5mm pawl pockets that distribute force 26% better, preventing deformation of the pockets over years of use Tougher metal for the drive ring and an extra tooth on each pawl, guaranteeing Hydra2 can easily handle the torque of the most powerful e-bike motors A refined aluminum rim profile built for durability and consistency Wheelset Hub Rim Spoke Parts/Upgrades Hydra2 Sector System Aluminum Wheelset Model: Industry Nine Hydra2 Sector System Aluminum Built For: Singletrack Seekers and Trail Tamers Position: Front & Rear Warranty: 2 Years ( Click here for details ) Weight: 1779 grams (29") (per wheelset) Weight Limit: 250lbs or 113kg max Wheels are shipped tubeless-ready and include the rim tape and valve installed. I9 Hydra 2 Hub Model: Industry Nine Hydra2 Rotor Mount: 6-Bolt Holes: 28 front, 32 rear Points of Engagement: 870 POE Drive Ring: 145 tooth Pawls: 6 Engagement: .41 degrees Bearing: Enduro Material: Aluminum WAO Sector Aluminum Rim Model: We Are One Sector Aluminum Tire Width: 2.20" - 2.50" Inner Rim Width: 28.5mm Outer Rim Width: 36.5mm Rim Depth: 21.3mm ERD: 598 Valve: 40mm Presta Material: Aluminum Rim Tape: Included & Installed Tubeless Ready: Yes Rim Weight: 510 grams (29") Industry Nine Alloy Spoke Model: i9 Proprietary Alloy Spoke Shape: Straight-Pull Material: Machined Aluminum Nipple: i9 Integrated, Aluminum Spoke count: 28 front, 32 rear Hydra 2 Ceramic Upgrades Freehub: Ceramic Freehub Kit Bearings: Ceramic Bearing Kit Hydra 2 Sector Replacement Parts Rim: We Are One Sector Rim Freehub: Complete Freehub Kit Bearing: Hub Bearing Kit Bearing Tool Kit: Bearing Tool Kit Front Axle: Front Hub Axle Rear Axle: Rear Hub Axle Front EndCaps: Front EndCaps Rear EndCaps: Rear EndCaps Pawl: Freehub Pawl Pawl Spring: Freehub Pawl Spring Tubeless Valves: Tubeless Valves