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DIAMONDHEAD

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Installed by Road Runner Wheels & Tires — family-owned in Marietta since 2010. Questions? Call (678) 400-6467.

About This Wheel

When you pick up the DIAMONDHEAD, the first thing you notice is how the face is structured — angular spoke geometry with sharp transitional edges that catch light differently depending on the viewing angle, even in matte. The spoke profile sits proud of the barrel, giving it real visual depth rather than a flat stamped look. That geometry reads especially well on darker body colors: Midnight Black Silverados, Magnetic Gray Tacomas, and graphite-toned Yukon Dennalis all let the wheel's structure do the talking. On a white or silver Tundra or Titan, the contrast punches harder than you'd expect from a matte finish.

Specifications

Diameter x Width	17x9, 18x9, 20x9.5
Bolt Pattern	6x139.7
Offset	-12mm, +0mm
Hub Bore	Varies by size (pick a size above)
Construction	Forged
Material	Aluminum alloy
Finish	MATTE BLACK
Manufacturer Part Number	Varies by size (pick a size above)

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How it works

1 Call 678-400-6467 to confirm fitment & availability
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678-400-6467 · Marietta, GA · Hablamos Español

Fitment

This wheel runs the 6x139.7 bolt pattern, which covers a range of half-ton trucks and SUVs depending on hub bore and offset. A hub-centric ring is recommended when the wheel hub bore is larger than the vehicle hub.

About the MATTE BLACK Finish

KG1 Forged produces wheels through a forging process that starts with a solid aluminum billet, pressing it under high pressure to align the grain structure and increase tensile strength. The result is a wheel that's meaningfully lighter than a comparable cast piece at the same diameter and width. Their fitment validation process is thorough, which is why the approved vehicle list covers everything from the Ford Bronco and Ram 1500 TRX to the Lexus GX 460 and Infiniti QX80.

About KG1 Forged

KG1 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.

Installing at Road Runner Wheels & Tires

Mount and balance available in our shop. TPMS programming available on-site. Free fitment guidance. Same shop handles lift kits, suspension work, and full builds.

Questions We Get

Do lug nuts come included?

Lug nuts are not included with the wheel. Because seat taper and thread pitch vary across manufacturers — conical seat on most GM and Nissan applications versus a shank-style on some others — matching the correct lug nut to your specific vehicle is important for both safety and seating depth. We stock the correct hardware for every approved vehicle and can confirm the right spec when you order.

Looking for wheels, rims & tires near you in the Atlanta metro? We mount + balance same day at our Marietta tire shop — 1585 Roswell Rd. Serving Marietta, Atlanta, Cobb County, Kennesaw, Smyrna, Sandy Springs, Roswell, Alpharetta, Buckhead + Vinings.

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