Features:- Our super light MTB disc rear hub for Cross Country and All Mountain use.- AL7075 CNC crafted hub shell with high flange for increased lateral wheel stiffness.- Double-sealed high precision low friction Japanese bearings.- Traditional ratchet system with 3 pawls and aluminum cassette body, easy maintenance.Specifications:- Holes: 24- Weight: 161 gr- Axle options: Flip Flop (9mm QR and 15Mm Thru-Axle)