S&S CYCLE Piston Kit — 4.00" bore, 4.00" stroke, 100 cu in displacement – 99-17 Dyna, 99-16 Touring, 00-17 CVO, 09-16 Trike, 00-17 Softail
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Forged flat-top pistons intended for S&S Super Sidewinder and other custom 4" bore engine applications, built for reliable performance and tight tolerances.