Up for sale is KB PISTONS 2017 FLHTK Electra Glide Ultra Limited Harley Davidson PISTON SUPER DUTY 4.250" BORE M8 107 TO 124" STD 11.8:1. The vendor part number is KB595LCA.STD. Please read the title to know what is for sale Anodized top ring groove and crown Line2Line abradable skirt coating applied to .003" total thickness for a ZERO initial fit to allow coating to hone in for a tight quiet running clearance Round wire locks Premium Hastings 1.2mm 1.2mm 3.0mm Steel Nitride top ring with a Ductile Napier second Forced wrist pin oiling M8 version with flat top 1.2cc with compression height 1.083", valve pockets sized to accommodate 1mm oversize valves