Pivot Phoenix 29 carbon Includes 10 pcs Enduro sealed cartridge bearings. 4 pcs are large cartridges with double-rows of bearings inside and have special extended inner races. The other 6 pcs are two different sizes of Endruo MAX (full complement for greater load bearing strength) bearings, both with special extended inner races. Please note the frame configuration in the picture. This kit is NOT for the later "mid-high pivot" with idler pulleys.