Focus JAM suspension bearing kit for frames produced from 2017 through 2020.. Includes 8 pcs Enduro bearings. 6 pcs are MAX (full complement) sealed cartridge bearings with Black Oxide anti-corrosion treatment on the bearing races. The other two bearings are Enduro ABEC 3 steel readial cartridge bearings. Please note the linkage style displayed in the pics and be sure this matches your frame. Note: Regular finish Enduro MAX bearings may be subsituted for the MAX bearings with Black Oxide Race Treatment when the Black Oxide version is not available.