Prestacycle UniBlock PRO Cassette - 11-Speed, HG 12 Interface for HG 12/11/10 Freehubs, 11-32t, Silver EA Cassettes

Prestacycle UniBlock PRO's unique HG12 interface is compatible with all HG12, HG11 and HG10 Freehubs Wider inner and outer freehub teeth maintain engagement at all points in all gears to provide an overall increase in freehub contact Includes red anodized locknut for HG 12 and HG 11 freehub bodies HG 10 requires Prestacycle's HG 10 lockring (sold separately)