Hub shell:AL6061T6 one piece; Spoke holes: 14Gx 36H; Axle: AL7075, d. 10mm x 145mm; Sealed ball bearing EZO 2 Pcs (left side in hub shell, right side inside of cassete body); Cassete body Cr-Mo with 3 powls splined nut, inside 2 loose balls lines, for 8, 9, 10 cassette sprocket Shimano, weight 433g.
