Freehub body B2 type (B427), Shimano 11 ABG for UPGRADE with fast engagement 2×3 pawls in angle 6.66°, black, alloy 6-pawls, with 9-speed 1.8mm alloy spacer, w/inner spacer, w/oil seal, 2xNBK – (6902 RS) bearings, OEM
Cassette body type: Shimano HG
Cassette body compatibility: B2
Freehub body material: Alloy