Yeti SB6C suspension bearing kit for frames produced from 2014 through 2018. Somtimes Yeti refers to this as the SB6C, other times just as the SB6. All models from 2014-2018 are carbon fiber and contain the same bearings. Contains 6 pcs of special flanged, Enduro MAX (full complement for greater load strength) sealed cartridge bearings with extended races. The SB6C uses the special Yeti/Fox "Switch Infinity" system.