{"product_id":"viper-3-4-big-pin-6-spring-two-disk-clutch-silver-no-driver","title":"Viper 3\/4\" Big Pin 6-Spring Two-Disk Clutch - Silver Drum \u0026 Levers, No Driver","description":"\u003cdiv class=\"product-description\"\u003e\n  \u003ch2\u003ePremium Viper Two-Disk Clutch for 3\/4\" Shafts\u003c\/h2\u003e\n  \u003cp\u003eEngineered for reliable performance in kart racing, this Viper two-disk clutch is designed specifically for 3\/4\" shafts. It delivers smooth engagement and consistent power transfer, making it a go-to choice for competitive setups. The striking silver lever support and drum provide not just a sleek look but also enhanced durability under high-stress conditions.\u003c\/p\u003e\n  \u003cp\u003eKey standout features include our heavy-duty FCDC-BPL Big Pin Levers, which ensure precise control and reduced wear. Pre-installed SMCFD8HP linings offer superior friction and heat resistance, while the FCDC-SP85 gold springs—set at .430\"—provide optimal tension for versatile tuning. One weight bolt and nut comes pre-installed in the outer hole, with six additional ones included for fine-tuning your clutch weights to match your track needs.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eSilver lever support and drum for corrosion resistance and style\u003c\/li\u003e\n    \u003cli\u003eFCDC-BPL Big Pin Levers for robust, reliable operation\u003c\/li\u003e\n    \u003cli\u003eSMCFD8HP linings factory-installed for immediate use\u003c\/li\u003e\n    \u003cli\u003eFCDC-SP85 gold springs at .430\" for balanced engagement\u003c\/li\u003e\n    \u003cli\u003eOne weight bolt\/nut installed; six extras provided\u003c\/li\u003e\n    \u003cli\u003ePerfect fit for 3\/4\" shafts—drive sprocket not included (order separately)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eThis 6-spring configuration allows for adjustable slip points, helping you dial in the perfect response for acceleration and top-end speed. Ideal for drivers seeking a high-quality, ready-to-install drivetrain component without the hassle of basic assembly.\u003c\/p\u003e\n  \u003ch3\u003eWhy Choose This Clutch?\u003c\/h3\u003e\n  \u003cp\u003eBuilt with precision components, it minimizes downtime and maximizes consistency lap after lap. The big pin design handles aggressive shifts, while the two-disk setup distributes load evenly for longevity.\u003c\/p\u003e\n  \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eDoes this clutch include a driver?\u003c\/strong\u003e No, the driver is not included. This is the clutch without driver configuration.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhat shaft size does it fit?\u003c\/strong\u003e Designed exclusively for 3\/4\" shafts.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhat type of springs are used?\u003c\/strong\u003e FCDC-SP85 gold springs installed at .430\".\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eAre the linings pre-installed?\u003c\/strong\u003e Yes, SMCFD8HP linings are factory-installed.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eIs the drive sprocket included?\u003c\/strong\u003e No, drive sprocket must be ordered separately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Viper","offers":[{"title":"Default Title","offer_id":53244310126910,"sku":"FCDC-ES-2","price":344.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/4721\/8494\/files\/3_4__Viper_Big_Pin_6-Spring_Clutch_without_Driver_Two_Disk_SILVER.jpg?v=1774898468","url":"https:\/\/swiftkarting.com\/products\/viper-3-4-big-pin-6-spring-two-disk-clutch-silver-no-driver","provider":"Swift Karting","version":"1.0","type":"link"}