SunRace CSMS8 Wide Ratio Cassette 11-46T , 11 Speed , Black #XTE1381 - 11-speed - 11-13-15-18-21-24-28-32-36-40-46T Cogs - Alloy Lockring and Spacers - 6 Sprockets on 2 Alloy Spider Carriers - Standard 10 11 speed Shimano freehub - Compatible with SRAM/Shimano mid or long cage derailleur - Shimano derailleurs require a longer B-tension screw, you will need to adjust your b-tension screw to allow your derailleur cage to correctly clear the largest sprockets - Color: Black (as pic. shown) - OEM package (This item is exactly as pictured and does not include retail package) - Weight: 537g Contents: 1 pc/pack