Motion Pro - M4x0.7, WP 43-48 without Ext. Preload Micro Bleeder for KTMOne of the easiest bolt on upgrades you can make to your forks. Specifications Black Blue For 2007 or later SX SXF XC XCF XCW models with WP 4860 MXMA CC Closed Cartridge fork caps (Mfg N 4860. 0516S1); also for use on all 1999 and later WP 43 WP 48 Fork Caps (Mfg N 4860. 0074S and 4860. 0075S) with external spring preload adjustment These fork caps require a 4 pin spanner, P N 158290, to remove the fork cap Kit includes two bleeder valves.