{"product_id":"s-s-cycle-flywheels-harley-davidson-4","title":"S\u0026S Cycle Flywheels — Harley-Davidson Street Glide, Softail Fat Boy 114, Road King Special (2017-2026)","description":"\u003cp\u003eS\u0026amp;S Cycle flywheels are the foundation of any high-performance Milwaukee-Eight engine, engineered from heat-treated 4140 material that is twice as strong as stock. Built with precision machining and full-width wristpin design, they handle elevated RPM and power output while maintaining strict balance tolerances.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHeat-treated 4140 material — twice as strong as stock\u003c\/li\u003e\n  \u003cli\u003eFull-width wristpin design requires S\u0026amp;S Performance Pistons\u003c\/li\u003e\n  \u003cli\u003eFinite Element Analysis eliminates weak spots\u003c\/li\u003e\n  \u003cli\u003eBalanced for S\u0026amp;S 1213g performance piston weight\u003c\/li\u003e\n  \u003cli\u003e4-5\/8\" stroke compatible with S\u0026amp;S 131 cubic inch kits\u003c\/li\u003e\n  \u003cli\u003eGear drive cam ready with balance gear pre-installed\u003c\/li\u003e\n  \u003cli\u003eConsistent precision machining and balancing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e S\u0026amp;S Cycle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 320-0605\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Drivetrain \/ Flywheels\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 40 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson Milwaukee-Eight platform.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDo I need S\u0026amp;S pistons to use these flywheels?\u003c\/h3\u003e\n\u003cp\u003eYes — the full-width wristpin design requires S\u0026amp;S Performance Pistons (1213g weight) for proper fitment and balance.\u003c\/p\u003e\n\u003ch3\u003eWhat stroke is this flywheel?\u003c\/h3\u003e\n\u003cp\u003e4-5\/8 inch stroke, designed to work with S\u0026amp;S 131 cubic inch engine kits.\u003c\/p\u003e\n\u003ch3\u003eCan I use these with a gear drive cam?\u003c\/h3\u003e\n\u003cp\u003eYes — the balance gear is pre-installed and ready for gear drive cam applications.\u003c\/p\u003e\n\u003ch3\u003eHow do these compare to stock flywheels?\u003c\/h3\u003e\n\u003cp\u003eS\u0026amp;S flywheels are heat-treated 4140 material, more than twice as strong as OEM, and balanced to tighter tolerances for higher RPM capability.\u003c\/p\u003e\n\u003ch3\u003eWill these support a high-horsepower build?\u003c\/h3\u003e\n\u003cp\u003eYes — engineered through Finite Element Analysis to eliminate weak spots and handle elevated power output without crankpin welding.\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53040435789935,"sku":"T14-662051","price":1995.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/b6a7b607e190cfd14e9c7ba27240393aL.jpg?v=1777659234","url":"https:\/\/vtwinbikers.com\/products\/s-s-cycle-flywheels-harley-davidson-4","provider":"Vtwinbikers","version":"1.0","type":"link"}