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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

Pick up a DIAMONDHEAD and the first thing you notice is how the face is machined — tight, angular spokes with a diamond-influenced cut pattern that catches light at sharp angles rather than reflecting it in a broad, chrome-style wash. The SM finish sits in an interesting middle ground: it has metallic depth but none of the maintenance headaches of a polished or chrome surface. On white or silver Super Duty trucks, it reads as a tonal, almost monochromatic pairing that looks intentional. Against darker body colors — black, magnetic gray, or dark blue — the satin metallic pops with just enough contrast. The zero offset keeps the wheel face sitting right where it needs to on these wide-body Ford platforms.

Specifications

Diameter x Width	20" x 9.5"
Bolt Pattern	8x170
Offset	-12mm, +0mm
Hub Bore	125.10mm
Construction	Forged
Material	Aluminum alloy
Finish	SM
Manufacturer Part Number	Varies by size (pick a size above)

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678-400-6467 · Marietta, GA · Hablamos Español

Fitment

This wheel runs the 8x170 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 SM Finish

KG1 Forged operates in the one-piece forged wheel space, using the forging process to produce a denser, stronger aluminum structure than a comparable cast wheel at a lower finished weight. Their fitment data is vehicle-specific rather than generic, and the DIAMONDHEAD line reflects that engineering-first approach — specs are chosen to work with the platform, not just fill a size bracket.

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

Will this fit my truck?

Approved fitments include the Ford F-250 and F-350 Super Duty in both 2wd and 4wd configurations from 1999 through current model years, as well as the Ford Excursion from 2000 to 2005. Always confirm your truck's hub bore and any leveling or lift kit clearance before ordering.

Do lug nuts come included?

Lug nuts are not included with the wheel. For 8x170 Ford applications you typically need a 14x1.5 thread pitch lug nut, but seat style — conical versus flat — matters too, so match the lug to the wheel seat rather than just the thread. We can point you to the correct lug nut at the time of purchase.

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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