***LIMITED ITEM PLS ALLOW 4 BUSINESS DAYS HANDLING TO SHIP*** Replacement 80 inch Evolution piston kit. Pistons are standard size. Our kit includes 2 cast alloy pistons Hasting ring set wrist pins and circlips. **Note: Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings. *NOTE: Install pistons with raised bars or on wrist pin area towards the sprocket shaft side of the engine. FITS HARLEY: 1984-1994 FXR, 1991-1998 FXD, 1986-1998 FLST, 1984-1998 FLT, 1984-1998 FXST,