Sunrace CSMZ80 12-Speed 11-50 Cassette, Black VZQ8C_VR276

Product details:

Color: Black 12-Speed Wide Range Ratio SRAM MTB derailleurs are generally compatible (check its chain wrap capability), Shimano MTB derailleurs may require a longer B-tension screw Fits on Shimano or Sram compatible freehubs. Spider Material: Steel 7 Sprockets on 2 spider carriers Sprocket Material: Hi-Tensile Steel Spacer Material: Steel Chain Compatibility: 12 Speed Cogs 11-50t: 11-13-15-17-19-21-24-28-32-36-42-50 Compatibility: SRAM / Shimano long cage derailleur only (check its specs for chain wrap capability). Published Weight ~ 702g