Intense Primer suspension bearing kit for model years 2017-2019. Contains 8 pcs Enduro MAX bearings. 4 upper bearings are Enduro MAX fully sealed cartridge bearings with Black Oxide anti-corrosion bearing race treatment. NOTE: If black oxide bearings are not available, Enduro MAX bearings without the black oxide finish may be substituted. 4 lower bearings are Enduro MAX shielded bearings designed to work with grease ports.