{"product_id":"kg1-forged-diamondhead-8x180","title":"KG1 Forged DIAMONDHEAD","description":"\u003cp\u003eWhen you hold a DIAMONDHEAD, the first thing you notice is how intentional the face geometry is. The spoke structure has that angular, cut-edge character the name implies — nothing soft or meandering about it. At 9.50 inches wide on a 20-inch diameter, the proportions fill the wheel well on a Silverado 2500 or Sierra 2500 HD without looking stuffed in. The Satin Machined finish catches light differently depending on angle: the machined surfaces throw a directional glint while the satin field stays controlled and matte-ish. It reads well against white, black, silver, and the darker granite or onyx metallics GM has been running on these trucks.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter x Width\u003c\/th\u003e\n\u003ctd\u003e20\" x 9.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBolt Pattern\u003c\/th\u003e\n\u003ctd\u003e8x180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOffset\u003c\/th\u003e\n\u003ctd\u003eET+0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Bore\u003c\/th\u003e\n\u003ctd\u003e124.30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eForged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eSM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eKO720F209588000SM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis wheel runs the 8x180 bolt pattern, which covers a range of half-ton trucks and SUVs depending on hub bore and offset. ET+0mm offset is typical for stock-height fitments; leveled and lifted trucks may want different offset\/backspacing combinations to clear larger tires. A hub-centric ring is recommended when the wheel hub bore is larger than the vehicle hub.\u003c\/p\u003e\n\u003ch3\u003eAbout the SM Finish\u003c\/h3\u003e\u003cp\u003eKG1 Forged focuses exclusively on flow-formed and fully forged construction, which means their manufacturing process is the product, not an afterthought. Forged wheels start as a solid billet and are shaped under extreme pressure, producing a denser grain structure than cast alternatives. That matters on heavy-duty applications where load ratings and long-term structural integrity aren't negotiable. KG1 has built a reputation in the HD truck space specifically by staying in their lane and engineering to the application.\u003c\/p\u003e\n\u003ch3\u003eAbout KG1 Forged\u003c\/h3\u003e\u003cp\u003eKG1 Forged produces wheels distributed nationally through trusted vendor channels. Catalogs are stocked, MAP-pricing is enforced, and warranty coverage is honored at the manufacturer level.\u003c\/p\u003e\n\u003ch3\u003eInstalling at Road Runner Wheels \u0026amp; Tires\u003c\/h3\u003e\u003cp\u003eMount and balance is same-day in most cases at our Marietta shop on Roswell Rd. We program TPMS sensors on-site and pair wheels with matching tires when needed. Same shop handles lift kits, suspension work, and full builds.\u003c\/p\u003e\n\u003ch3\u003eQuestions We Get\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWill this fit my truck?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis wheel is spec'd at 20x9.50 with a 0mm offset and an 8x180 bolt pattern, which is the correct bolt pattern for Chevrolet Silverado 2500 HD and 3500 HD trucks as well as GMC Sierra 2500 HD and 3500 HD models across a wide model year range spanning 2011 through 2027. Always confirm your specific trim and year against the fitment guide, and factor in any leveling kit or suspension lift when evaluating clearance at zero offset.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo lug nuts come included?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLug nuts are not included with the wheel. For 8x180 GM HD applications you'll need a seat style that matches your specific lug nut pockets — most OEM and aftermarket HD GM hardware uses a 14x1.5 thread pitch with a conical or mag seat depending on the wheel. We can confirm the correct seat type and point you to compatible hardware before your order ships.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I finance a set?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes, financing options are available through \u003cstrong\u003eAcima\u003c\/strong\u003e, \u003cstrong\u003eAffirm\u003c\/strong\u003e, and \u003cstrong\u003eSynchrony Car Care\u003c\/strong\u003e, so you can spread the cost of a set across manageable payments rather than paying all at once. Each program has different approval criteria and term structures, so it's worth checking which option works best for your situation at checkout.\u003c\/p\u003e","brand":"KG1 Forged","offers":[{"title":"20x9.5 \/ ET+0 \/ SM","offer_id":53819282489557,"sku":"KO720F209588000SM","price":765.0,"currency_code":"USD","in_stock":false},{"title":"20x9.5 \/ ET-12 \/ MATTE ANTHRACITE BLACK RING","offer_id":53819282522325,"sku":"KO720F209588012AB","price":765.0,"currency_code":"USD","in_stock":true},{"title":"20x9.5 \/ ET-12 \/ MATTE BLACK","offer_id":53819282555093,"sku":"KO720F209588012BB","price":765.0,"currency_code":"USD","in_stock":true},{"title":"20x9.5 \/ ET-12 \/ SM","offer_id":53819282587861,"sku":"KO720F209588012SM","price":765.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4095\/3045\/files\/41ee491b-2139-4f45-a04f-ff30fce0cad4_bc5fd42b-f919-496a-8b62-1e6fe05fab9e.png?v=1778901522","url":"https:\/\/roadrunnerwheels.com\/products\/kg1-forged-diamondhead-8x180","provider":"Road Runner Wheels \u0026 Tires","version":"1.0","type":"link"}