{"product_id":"spring-kit-05-17-tc-xl-20-23600","title":"Spring Kit 05-17 Tc\/Xl 20-23600","description":"Racing Valve Spring Kit\u003cli\u003eDesigned for its specific application, taking into account several critical parameters including; cam profiles, harmonics, natural frequency of the springs, valvetrain mass, required pressure, wire stress, fatigue life, and engine rpm\u003c\/li\u003e\u003cli\u003eProgressively wound springs using Kobe super-clean, chromium silicon(CrSi) based wire that is heat treated and shot peened\u003c\/li\u003e\u003cli\u003eComplete set for one engine\u003c\/li\u003e\u003cli\u003eMade in the USA\u003c\/li\u003eNot for RH Sportster.\nKit Includes:\n• 4x CrSi Valve Springs\n• 4x H.T Steel Retainers\n• 4x H.T. Steel Keepers\n• 4x H.T. Steel Basewashers\n• 4x Viton® Seals","brand":"Kibblewhite","offers":[{"title":"Default Title","offer_id":50860985909578,"sku":"25PTS012906","price":241.94,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/8949\/1786\/files\/8d4e628db3f8fff2ca4a66d86f9c2043_600.webp?v=1751961284","url":"https:\/\/throttleandgear.com\/products\/spring-kit-05-17-tc-xl-20-23600","provider":"Throttle \u0026 Gear Co. Ltd.","version":"1.0","type":"link"}