Harley Davidson 21900164 Screamin' Eagle High Compression Pistons screaming KIT,PSTN,4.310,BORE,4.625,STRK,STD sweatshirt whether you're cruising down the

whether you're cruising down the highway or navigating urban streets

Light transmission: 14% +/- 3%

Dare to be bold

10% elastane

fairing cap

Harley Davidson 21900164 Screamin' Eagle High Compression Pistons screaming KIT,PSTN,4.310,BORE,4.625,STRK,STD sweatshirt whether you're cruising down theKIT,PSTN,4. 310,BORE,4. 625,STRK,STD Screaming eagle Screamin' Eagle High Compression Pistons 135 CI 21900164 High compression pistons 4. 310" bore. Forged flat top pistons Piston design and rings engineered to withstand increased combustion forces for outstanding durability Updated ring package with 1mm compression and scraper rings Gas ported to assist with ring sealing while allowing for low tension and reduced friction Replacement pistons for '21