By the Rims & Tires Team
Compiled & reviewed by our West Georgia tire & wheel research team · Updated 2026-07-17
The GMC Hummer EV Edition 1 and EV3X models roll on a distinctive factory fitment: LT305/70R18 — a 35-inch-tall tire on an 18-inch rim. This is a purpose-designed OEM Goodyear Wrangler Territory MT built specifically for the Hummer EV. With a curb weight approaching 9,046 lbs, the Hummer EV demands tires that handle both extreme off-road stress and the unique torque demands of its electric powertrain.
Stock Tire Size and OEM Fitment
GMC Hummer EV Edition 1 and EV3X pickup: LT305/70R18 126R Goodyear Wrangler Territory MT (Load Range E) — a purpose-designed, Hummer EV-exclusive tire that Goodyear developed alongside GMC, fitted via the standard Extreme Off-Road Package.
GMC Hummer EV SUV: LT305/55R22 on 22-inch wheels as standard; the LT305/70R18 18-inch setup comes with the off-road package.
The 35-inch-tire-on-18-inch-rim format is a common off-road combination, so aggressive all-terrain and mud-terrain tires in this size are widely available compared to more exotic rim diameters.
The Goodyear Wrangler Territory MT in LT305/70R18 carries Load Range E (10-ply equivalent) with a 126 load index (about 3,748 lbs per tire) and is rated for the Hummer EV weight class. Never substitute a lower load range tire — the Hummer EV exceeds the payload of any standard pickup and requires Load Range E or better.
Best Replacement Tires for the GMC Hummer EV
Goodyear Wrangler Territory MT LT305/70R18: the OEM replacement and currently the best-proven option. Purpose-built for the Hummer EV, it is validated for the vehicle weight, the regenerative braking torque, and the off-road capability the truck is marketed for. Like-for-like replacement is the safest choice for worn originals.
BFGoodrich All-Terrain T/A KO3: available in 35-inch sizes on the factory 18-inch rim diameter — a well-regarded all-terrain option with strong street-to-trail capability and wide availability.
Falken Wildpeak A/T4W: also available in compatible 35-inch sizes on the factory 18-inch rims. Excellent mud and rock performance with a quieter highway character than dedicated mud-terrain tires. A strong choice for owners who drive on-road most of the time but want genuine off-road capability on demand.
Mickey Thompson Baja Boss A/T: aggressive tread for serious off-road use, available in 35-inch sizes on 18-inch rims. Best for owners who take the Hummer EV on challenging trails and prioritize maximum traction over highway comfort.
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EV-Specific Considerations for the Hummer EV
Load rating is non-negotiable. The Hummer EV Edition 1 weighs 9,046 lbs curb weight, heavier than many commercial-class trucks. The factory tire carries a 126 load index (about 3,748 lbs per tire) in Load Range E. Never install a lower load range or lower load index tire.
Regenerative braking torque: electric motors apply braking force directly through the drivetrain at the tire contact patch. This creates wear patterns different from combustion engine vehicles. The Goodyear Territory MT and BFGoodrich KO3 both handle this stress well due to their reinforced construction.
Rolling resistance and range: the Hummer EV is already range-challenged due to its weight and aerodynamics. Highly aggressive mud-terrain tires further reduce range. The all-terrain options (KO3, Wildpeak A/T4W) cut that range loss compared to full mud-terrain tires while still providing serious off-road capability.
Tire rotation: with uniform non-staggered fitment and four-wheel independent torque control, the Hummer EV can rotate tires normally. Rotate every 5,000 to 7,500 miles to even out wear from the heavy vehicle weight.
Frequently asked
What tires come on the GMC Hummer EV?
The GMC Hummer EV Edition 1 and EV3X come standard with Goodyear Wrangler Territory MT tires in size LT305/70R18 (a 35-inch tire) — purpose-designed by Goodyear exclusively for the Hummer EV, though the 35-inch LT305/70R18 dimension itself is shared with other off-road trucks.
Can I put regular truck tires on a GMC Hummer EV?
The factory LT305/70R18 dimension is shared with many other off-road trucks, so the BFGoodrich, Falken, Nitto, and Mickey Thompson catalogs already offer compatible 35-inch options on the stock 18-inch wheels — no wheel change required. Ensure any replacement maintains Load Range E or higher.
What size tires does a GMC Hummer EV use?
The Edition 1 and EV3X use LT305/70R18 — roughly 35-inch diameter, 305mm (about 12-inch) width, 18-inch rim. Lower pickup trims and the SUV's 22-inch package use LT305/55R22 instead. Check the door jamb sticker on your specific vehicle before ordering tires.
How often should I rotate GMC Hummer EV tires?
Every 5,000 to 7,500 miles. The Hummer EV weighs nearly 9,000 lbs curb weight, which accelerates tire wear considerably. Regular rotation is critical to getting full life out of a set of expensive off-road tires. All four corners use the same size, so a standard cross-rotation pattern works.
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Last updated 2026-07-17. General guidance only — confirm specifics with a local shop for your exact vehicle.