Peringan Kopling Pengenteng Kopling Harley Davidson Aim Tamachi 6 baut PART# VP028 Works like a lock up clutch. Up to about 40% reduce clutch lever effort than stock. Not only lighter, but stronger clutch engagement than stock when it revs up. 10-minute installation. Install through the derby cover without removing the primary cover. Better clutch disengagement and feel than stock, Easier to find neutral. Fits behind stock derby cover on #39;98 and later Big Twin Models with 6 Studs Style Clutch and primary cover. No modification required. (except #39;13 and later A amp;S Clutch, 3 Studs Style Clutch and #39;15 and later Narrow Primary Cover)