Trek Fuel EX suspension bearing kit for frames produced from 2017 through 2019. Includes 14* pcs Enduro MAX (full complement for greater load strength) sealed cartridge bearings, 6 pcs of which are special double-row bearings. *NOTE: 2 extra bearings are included to cover a rare exception on one Trek frame that was encountered. This assures that your 2017-19 Trek Fuel EX will be covered.