{"product_id":"spec-90-01-nissan-skyline-rb20-steel-flywheel","title":"Spec 90-01 Nissan Skyline RB20 Steel Flywheel","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eCSN43S\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSpec 90-01 Nissan Skyline RB20 Steel Flywheel\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Spec Steel Flywheel fits 1990-2001 Nissan Skyline models with RB20DE and RB20DET engines including R32 R33 and R34 chassis. This billet steel flywheel maintains stock-like weight for everyday drivability while handling high torque loads from upgraded clutches. It ensures consistent shifts and resists warping under heat for reliable street and track use.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Steel Construction:\u003c\/strong\u003e Forged from high-strength steel for maximum durability and resistance to cracking common in aluminum flywheels during prolonged use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Weight Balance:\u003c\/strong\u003e 24.5 lbs matches OEM specifications to preserve engine smoothness and starter motor longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSFI 1.2 Certification:\u003c\/strong\u003e Meets rigorous safety standards for racing applications with proven reliability in drag and circuit events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachined Ring Gear:\u003c\/strong\u003e 144-tooth steel ring gear provides positive starter engagement and long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Zinc Finish:\u003c\/strong\u003e Corrosion-resistant coating protects against rust in harsh conditions while maintaining a professional appearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned to pair with Spec clutch kits or OEM replacements for optimal performance.\u003c\/li\u003e\n\u003cli\u003eInspect clutch disc and pressure plate during installation for even wear patterns.\u003c\/li\u003e\n\u003cli\u003eShips in protective packaging to prevent damage during transit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eRequires Nissan RB20 engine alignment tool for proper centering.\u003c\/li\u003e\n\u003cli\u003eCompatible with 225mm clutch diameter and 23-spline input shaft.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1990-1994\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline\u003c\/td\u003e\n\u003ctd\u003eR32 GTS RB20DET\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1990-1994\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline\u003c\/td\u003e\n\u003ctd\u003eR32 GTS-t RB20DET\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1995-1998\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline\u003c\/td\u003e\n\u003ctd\u003eR33 GTS RB20DE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1995-1998\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline\u003c\/td\u003e\n\u003ctd\u003eR33 GTS-t RB20DET\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2001\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline\u003c\/td\u003e\n\u003ctd\u003eR34 200GT RB20DE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhy Choose SPEC Clutch?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered and manufactured in the USA with racing pedigree from NHRA and SCCA events.\u003c\/li\u003e\n\u003cli\u003eBacked by limited warranty covering defects in materials and workmanship.\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-machined components ensure exact fitment and balance every time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this flywheel fit my R33 Skyline GTS-t with RB20DET?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes it bolts directly to 1995-1998 R33 GTS-t RB20DET engines using stock hardware and maintains compatibility with OEM or aftermarket clutches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is used and does it affect pedal feel?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Billet steel construction weighs 24.5 lbs similar to stock providing familiar pedal effort and smooth engagement without the harshness of lighter aluminum options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty applies and is installation covered?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e SPEC offers a limited warranty against defects professional installation is recommended but not covered contact SPEC for claims process.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or FedEx\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Secure foam-lined box 14 x 14 x 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 25 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPEC","offers":[{"title":"Default Title","offer_id":43792346939471,"sku":"SPECSN43S","price":386.1,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/SKU_CSN43S.png?v=1769183366","url":"https:\/\/www.blackopsautoworks.com\/products\/spec-90-01-nissan-skyline-rb20-steel-flywheel","provider":"Black Ops Auto Works","version":"1.0","type":"link"}