Hub rear D902SB-B12-A4A-11S, polished anodized black, 32H/14G, Alloy axle 12×148, w/o QR, D:45.9, 4xNBK bearings, Ratchet Ring 40T, Shim.11 Alloy H-TYPE (404 system) cassette body (E440), 4-PAWLS, with 1.5mm 9-speed spacer, black side caps, with Novatec lasered logo, OEM