The Hydra2 Enduro S 6-Bolt Rear Wheel combines steel spokes and an alloy rim to deliver legendary i9 performance and engagement at a more affordable price for budget-conscious riders. Thanks to i9's hollow bead wall technology, you can avoid pinch flats, while Hydra2’s instant engagement ensures every millisecond counts. Whether you're pushing for a top spot on Strava or aiming for EWS success, the Enduro-S Hydra2 rear wheel gives you the reliability to tackle the mountain quickly, without breaking the bank. Industry Nine Hydra 2 Enduro S 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 Industry Nine Enduro S Specs Rear Wheel Hub Rim Spoke Parts/Upgrades Industry Nine Enduro S Rear Wheel Model: Industry Nine Hydra2 Enduro S Built For: Big Mountain and Enduro Riding Position: Rear Warranty: 2 Years ( Click here for details ) Weight: 990 grams (27.5"), 1035 grams (29") Weight Limit: 290lbs or 132kg max Wheel is shipped tubeless-ready and includes the rim tape and valve installed. I9 Hydra 2 Hub Model: Industry Nine Hydra2 Rotor Mount: 6-Bolt Holes: 32 hole Points of Engagement: 870 POE Drive Ring: 145 tooth Pawls: 6 Engagement: .41 degrees Bearing: Enduro Material: Aluminum I9 Enduro 300 Rim Model: Industry Nine Enduro 300 Tire Width: 2.30" - 2.80" Inner Rim Width: 30mm Outer Rim Width: 37.6mm Valve: 40mm Presta (color matched to hub) Material: Aluminum Rim Tape: Included & Installed Tubeless Ready: Yes Rim Weight: 490 grams (27.5"), 520 grams (29") Sapim Race Spoke Model: Sapim Race 14g Shape: J-Bend Material: Steel Nipple: Sapim alloy double lock Spoke count: 32 Hydra 2 Ceramic Upgrades Freehub: Ceramic Freehub Kit Bearings: Ceramic Bearing Kit Hydra 2 Enduro Replacement Parts Rim: Enduro 300 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