Specialty non-hydraulic adjustable tappet, must be used with short non-adjustable pushrods with lengths depending on engine height. Weight 126 grams each. For use in applications where a hydraulic lifter is not desired. Note: Standard O.D. is .8425". / Fitment: 84-99 Big Twin; 86-90 XL Sportster; 87-90 BUELL (NU)