Two things you already know and love combined in a wheelset. Lightning-fast propulsion courtesy of the Hydra Classic hubs laced to i9's terrain-taming Enduro S alloy rim creates a wheelset for charging technical trails. The perfect upgrade for any mountain bike built to attack demanding terrain with long descents. Industry Nine Enduro S Hydra Classic Features Built for Demanding Trails to All Mountain Traditional flanged hub shell packed with i9 tech, but using a standard j-bend spoke and nipple Groundbreaking 690 P.O.E. Hydra Freehub body engages every .52 degrees yielding telepathic control. 12 different anodized colors to create a look as colorful or stealthy as you wish Wheels are shipped tubeless-ready and include the rim tape and valve installed Industry Nine Enduro S Hydra 1 Classic Specs Position: Rear Rim Type: Enduro S Hub: Hydra 1 Classic Rotor Type: 6-bolt Rear POE: 690 Holes / Spokes: 28 Tire Width: 2.3 - 2.8" Inner Rim Width: 30.5mm Outer Rim Width: 34.1mm Spoke: J-Bend Steel, double butted Valve: Aluminum , color matched to the hub Tubeless Valve Included: Yes Weight: 945g (27.5"), 1010g (29") Rim Material: Aluminum Alloy Hub Material: Aluminum Tubeless Ready: Yes Rim Tape Installed: Yes Weight Limit 285 pounds Warranty: 2 Year ( Click here for details )