When the trail takes a steep dive and every split second matters, the Hydra2 DH Rear Wheel is your ultimate ally. Built for tough descents, its high-volume, reinforced rim helps you stay steady on even the roughest terrain. The oversized hollow bead wall guards against pinch flats, while the rugged straight-pull aluminum spokes deliver bombproof reliability, so you can focus on the ride and let gravity take care of the rest. Industry Nine Hydra 2 DH 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 DH Specs Rear Wheel Hub Rim Spoke Parts/Upgrades Industry Nine DH Rear Wheel Model: Industry Nine Hydra2 DH Built For: Downhillers and Freeriders Position: Rear Warranty: 2 Years ( Click here for details ) Weight: 1035 grams (27.5"), 1095 grams (29") Weight Limit: 330lbs or 150kg 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 Grade 300 V2 Rim Model: Industry Nine Grade 300 V2 Tire Width: 2.30" - 2.60" Inner Rim Width: 30mm Outer Rim Width: 38mm Valve: 40mm Presta (color matched to hub) Material: Aluminum Rim Tape: Included & Installed Tubeless Ready: Yes Rim Weight: 590g (27.5"), 630g (29") Industry Nine Alloy Spoke Model: i9 Proprietary Alloy Spoke Shape: Straight-Pull Material: Machined Aluminum Nipple: i9 Integrated, Aluminum Spoke count: 32 Hydra 2 Ceramic Upgrades Freehub: Ceramic Freehub Kit Bearings: Ceramic Bearing Kit Hydra 2 DH Replacement Parts Rim: Grade 300 V2 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