Santa Cruz Bronson 2 suspension bearing kit fits frames manufactured from 2016 through 2018. Includes 8 pcs Enduro MAX (full complement for greater load strength) cartridge bearings. 6 pcs are angular contact bearings. 2 pcs are deep groove radial bearings with Black Oxide anti-corrosion bearing race treatment. 4 pcs are greaseable bearings with shields on one side and open on the other so that they can be serviced with a grease gun via the "Zerk" fitting on the lower linkage.