SRAM XG-1150 Cassette is Srams latest release for their 11spd mountain drivetrains and sports the same XD driver body and 10-42t range as the premium models... but the GX groups XG-1150 Cassette comes at a much more affordable price! Letting you enjoy your bike that much more without having to stress about those expensive parts.(In case you were wondering, the GX cassette is the XG-1150, we don't know why Sram doesn't just call their cassettes the name of the group they are in but that is just their way of making things confusing. For reference the XG-1150 is the GX cassette, the XG-1180 is the X1, the XG-1195 is the X01 and the XG-1199 X-dome is the XX1)Upgrade your drivetrain with Sram's new affordable 1x11 system! The GX group has been a huge hit and getting riders on the brilliant 1x11 Sram system at a price that won't break the bank! We offer the full GX group together and all the parts individually as well.Requires XD-11 driver/cassette bodyFull Pin technology uses lightweight, stamped chomoly steel cogs held together with high-strength stainless steel pinsOpen design aids in mud clearanceCorrosion resistant black finishItem SpecificationsNumber of Speeds:11Weight:393g SRAM GX XG-1150 11 Speed Cassette Cassettes UPC: 710845770630