{"product_id":"s-s-cycle-flywheels-harley-davidson-1","title":"S\u0026S Cycle Flywheels — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)","description":"\u003cp\u003eS\u0026amp;S Cycle flywheels for Harley-Davidson, engineered with finite element analysis and heat-treated 4140 material to deliver strength and durability that handles sustained high-RPM power. Built as the foundation of a true performance engine, trued to precision specs and balanced for stock piston weight.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHeat-treated 4140 material — over 2x stronger than stock\u003c\/li\u003e\n  \u003cli\u003eFinite element analysis design eliminates weak spots\u003c\/li\u003e\n  \u003cli\u003eTapered wristpin compatible with stock pistons\u003c\/li\u003e\n  \u003cli\u003e4.5-inch stroke (fits 114 or 128 cubic inch engines)\u003c\/li\u003e\n  \u003cli\u003eBalanced for stock 1060g piston weight\u003c\/li\u003e\n  \u003cli\u003eBalance gear installed and precision-machined\u003c\/li\u003e\n  \u003cli\u003eCapable of higher RPM without crankpin welding\u003c\/li\u003e\n  \u003cli\u003eOptimized for gear drive cam conversions\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 320-0598\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 models. Verify engine displacement (114 or 128 cubic inch) and cam drive type before ordering to ensure proper fitment.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill these flywheels work with my stock pistons?\u003c\/h3\u003e\n\u003cp\u003eYes — the tapered wristpin design is compatible with stock Harley pistons and balanced for 1060g piston weight.\u003c\/p\u003e\n\u003ch3\u003eCan I use these with a gear-drive cam conversion?\u003c\/h3\u003e\n\u003cp\u003eYes — S\u0026amp;S designed these flywheels with gear drive cams in mind.\u003c\/p\u003e\n\u003ch3\u003eDo I need to have the crankpin welded for strength?\u003c\/h3\u003e\n\u003cp\u003eNo — the stronger 4140 material eliminates the need for crankpin welding, saving machine shop costs.\u003c\/p\u003e\n\u003ch3\u003eWhat stroke length is this?\u003c\/h3\u003e\n\u003cp\u003e4.5-inch stroke, available for both 114 and 128 cubic inch configurations.\u003c\/p\u003e\n\u003ch3\u003eAre these balanced?\u003c\/h3\u003e\n\u003cp\u003eYes — the balance gear is installed and precision-machined to match stock piston weight.\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53040429727855,"sku":"T14-662048","price":1995.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_ff943c01-a9a8-4a47-83f6-b6b359a439a0.png?v=1779566675","url":"https:\/\/vtwinbikers.com\/products\/s-s-cycle-flywheels-harley-davidson-1","provider":"Vtwinbikers","version":"1.0","type":"link"}