CSMX3 10sp Cassette, 11-42t - Silver

- Wide-range mountain cassette compatible with HG 8-11sp freehub bodies \n- 7075 aluminum largest cog, all other cogs are steel\n- 6 cogs on 2 aluminum spiders, plus aluminum lockring and spacers\n- SRAM derailleurs are generally compatible, Shimano derailleurs require a longer B-tension screw (use WQ-2299)