{"product_id":"kmc-km556-crux-6x139-7","title":"KMC KM556 CRUX","description":"\u003cp\u003eWhen you pick up the KM556 CRUX, the first thing you notice is how deliberate the face is — a tight cluster of straight spokes that radiate outward without crowding the barrel. There's no wasted material and no fussy machining detail to catch dirt. The gray finish sits in a middle tone that reads as charcoal in shade and lightens a full stop in direct sun, giving the face real visual depth without demanding attention. It pairs cleanly with white, silver, black, and most earth-tone truck colors. Body-on-frame trucks, Tacomas, 4Runners, and body-lifted SUVs are where this wheel consistently looks most at home. The proportions at 17x8.5 fill a standard wheel well without pushing past the fender, keeping the overall look balanced and functional.\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\u003e17\" x 8.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBolt Pattern\u003c\/th\u003e\n\u003ctd\u003e6x139.7\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\u003eBackspacing\u003c\/th\u003e\n\u003ctd\u003e4.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Bore\u003c\/th\u003e\n\u003ctd\u003e106.10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Rating\u003c\/th\u003e\n\u003ctd\u003e2650 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eCast\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\u003eGRAY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eKM556AX17856800\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 6x139.7 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 GRAY Finish\u003c\/h3\u003e\u003cp\u003eKMC has been producing wheels for truck, SUV, and off-road applications long enough that their fitment engineering is genuinely reliable. The KM556 CRUX is part of their core cast lineup — not a limited run — which means replacement availability and consistent quality control across production batches. They're a practical choice when you want a recognizable name without paying a premium for it.\u003c\/p\u003e\n\u003ch3\u003eAbout KMC\u003c\/h3\u003e\u003cp\u003eKMC 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 available at our Marietta shop on Roswell Rd. TPMS programming available on-site. Free fitment guidance. 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\u003eThe 6x139.7 bolt pattern covers a wide range of full-size trucks and SUVs including Toyota, Nissan, Chevy, GMC, and older Ford platforms. That said, always confirm your specific year, make, and model against hub bore, offset, and load rating requirements before ordering — a zero offset is not correct for every application in this bolt pattern family.\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. Most trucks in this bolt pattern use a conical or mag-style seat, and the seat type needs to match your existing hardware or new lug nuts purchased separately. We can help you identify the correct seat and thread pitch when you call or come in.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I finance a set?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYes, we offer financing options through \u003cstrong\u003eAcima\u003c\/strong\u003e, \u003cstrong\u003eAffirm\u003c\/strong\u003e, and \u003cstrong\u003eSynchrony Car Care\u003c\/strong\u003e, which covers wheels, tires, and installation together in one transaction. Terms and approval are handled quickly, and you can ask about current plans when you contact us or visit the shop.\u003c\/p\u003e","brand":"KMC","offers":[{"title":"17x8.5 \/ ET+0 \/ GRAY","offer_id":53744893395157,"sku":"KM556AX17856800","price":370.0,"currency_code":"USD","in_stock":true},{"title":"17x8.5 \/ ET+25 \/ GRAY","offer_id":53744893427925,"sku":"KM556AX17856825","price":370.0,"currency_code":"USD","in_stock":true},{"title":"17x8.5 \/ ET+0 \/ BLACK","offer_id":53744893460693,"sku":"KM556MX17856800","price":370.0,"currency_code":"USD","in_stock":true},{"title":"17x8.5 \/ ET+25 \/ BLACK","offer_id":53744893493461,"sku":"KM556MX17856825","price":370.0,"currency_code":"USD","in_stock":true},{"title":"17x8.5 \/ ET+0 \/ SILVER","offer_id":53744893526229,"sku":"KM556SD17856800","price":445.0,"currency_code":"USD","in_stock":true},{"title":"17x8.5 \/ ET+25 \/ SILVER","offer_id":53744893558997,"sku":"KM556SD17856825","price":445.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4095\/3045\/files\/KMC-KM556-CRUX-17X8-5-6-ET0-GLOSS-GUNMETAL-A1-png_b9358599-8cc5-443a-b9e4-9b946bf2478e.png?v=1777836061","url":"https:\/\/roadrunnerwheels.com\/products\/kmc-km556-crux-6x139-7","provider":"Road Runner Wheels \u0026 Tires","version":"1.0","type":"link"}