- Industry 9 quality for your single speed - Redesigned with scalloped hub flange to distribute stress loads - Hydra2 freehub mechanism improves over previous Hydra hub internals with larger pawl pockets and tougher metal for the drive ring - 6-pawl, 6-phase, with an extra tooth on the pawl for quicker .41 deg between engagement points - 6-bolt/44mm-BCD International Standard disc mounting dimensions - There can be color variations during anodization from batch to batch from the colors you see on our site - Made in Asheville, NC USA