Up for sale is WISECO 2018 FLTRXS Road Glide Special Harley Davidson M8 BIG BORE PISTONS 124" 11:1 COMP. The vendor part number is K2787. Please read the title to know what is for sale Premium compression ring for ultimate ring seal Napier second ring, taper face with underhook improves oil control 3mm Oil ring design for higher tension and enhanced oil control Armor X piston coating for reduced wear ArmorGlide skirt coating for reduced friction, quieter operation and improved scuff resistance Work with OEM and Screamin' Eagle heads