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2020 Ford GT Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Ford GT wheels? This page gives the 2020 Ford GT bolt pattern (5x114.3), centre bore, factory rim size and the offset range for aftermarket and forged Ford GT rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Ford GT (2020): 5x114.3 bolt pattern, 70.5mm center bore. Factory wheels: F: 20x8.5J R: 20x11.5J. Reference fitment ranges.
Bolt Pattern5x114.3
Wheel Bolt/NutM12x1.5 Nut
Center Bore70.5mm
Wheel Load Rating700–850 kg/wheel (Performance / Sports Car segment reference)
Year2020
CategorySupercar
✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed September 18, 2026. How we verify
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | F: 20x8.5J R: 20x11.5J |
| Flush Fitment | F 20x9.0J ET35 / R 20x12.0J ET42 |
| Maximum Aggressive | F 20x9.5J ET30 / R 20x12.5J ET38 |
Forged Wheel Designs for the Ford GT
Every design below is forged to order, so it can be machined to the Ford GT's 5x114.3 bolt pattern and 70.5 mm center bore, with the width and offset calculated for your setup.
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How to Read Wheel Offset & Measurements
Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.
ANKUSI Engineering Expert Advice
On a supercar, wheel weight is one of the few remaining places to cut rotational mass without touching the powertrain or chassis the factory already optimized. Forging gets there at the same structural margin as the OE wheel, which is exactly the trade a car built around outright performance rewards.
The Ford GT runs a 5x114.3 bolt pattern, 70.5mm center bore, and a F: 20x8.5J wheel from the factory. Our Flush Fitment reference is F 20x9.0J ET35 / R 20x12.0J ET42, which tucks the tire under the fender lip on a stock-height Ford GT. Our Maximum Aggressive reference is F 20x9.5J ET30 / R 20x12.5J ET38 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Ford GT OE Wheel Specs
The 2020 Ford GT (Supercar) uses a 5x114.3 bolt pattern with a 70.5mm center bore. Factory wheels are F: 20x8.5J R: 20x11.5J.
Why the factory spec works for most owners:
- Keeps the factory ride quality and noise levels intact
- A common fitment for this class, so replacement tires are easy to source
- Preserves clearance around the OE brakes and suspension geometry
- Delivers predictable, easy-to-live-with handling for daily use
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Ford GT (2020) we drill the 5x114.3 pattern and cut the centre bore to 70.5mm on our own CNC line, so the wheel hub-centres on the car with no spacer rings, in whatever diameter, width and offset you specify.
Converting these ET figures to backspacing? Use the wheel offset and backspacing calculator.
The figures on this page are part of our open wheel fitment dataset — 10,093 vehicles, free to download, CC BY 4.0.
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: F 20x8.5J ET42 → ~6.4″ F backspacing, R 20x11.5J ET50 → ~8.22″ R backspacing
- Flush: F 20x9.0J ET35 → ~6.38″ F backspacing, R 20x12.0J ET42 → ~8.15″ R backspacing
- Max: F 20x9.5J ET30 → ~6.43″ F backspacing, R 20x12.5J ET38 → ~8.25″ R backspacing
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or looking for your exact Ford spec, or want a wheel built to a custom offset for your Ford GT? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Frequently Asked Questions
What bolt pattern (PCD) does the Ford GT use?
The 2020 Ford GT uses a 5x114.3 bolt pattern.
How many lug bolts does the Ford GT use?
The Ford GT uses a 5-lug bolt pattern (5x114.3), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Ford GT?
The Ford GT's center bore is 70.5mm. If an aftermarket wheel has a larger center bore than this, hub-centric rings are recommended so the wheel centers on the hub itself rather than relying on the lug bolts alone.
What size are the factory (stock) wheels on the Ford GT?
Factory wheels on the Ford GT are F: 20x8.5J R: 20x11.5J.
What is the biggest wheel size I can fit on my Ford GT without rubbing?
The most aggressive fitment we recommend without fender work is F 20x9.5J ET30 / R 20x12.5J ET38. Going beyond this typically causes rubbing under compression unless you roll the fenders or add camber correction.
What does a flush wheel fitment look like on the Ford GT?
For a flush look with minimal to no rubbing, we recommend F 20x9.0J ET35 / R 20x12.0J ET42 as a starting point on a stock or mildly lowered Ford GT.
Do I need wheel spacers for my Ford GT?
No. ANKUSI forges each wheel to your exact target offset, including the flush or max specs above, so you get the correct fitment without stacking spacers. Spacers are typically only used to push out an existing OE-offset wheel without replacing it, which isn't necessary when you're ordering a custom-offset forged wheel.
How do I calculate wheel backspacing for my Ford GT?
Backspacing (in inches) = wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance). For example, the flush spec above works out to roughly 6.38" backspacing up front and 8.15" in the rear.
What's the difference between wheel offset and backspacing?
Offset is the distance in millimeters from the wheel's true centerline to its mounting face (positive offset pulls the wheel in, negative pushes it out). Backspacing is the distance in inches from the mounting face to the back edge of the wheel barrel. They describe the same fitment from two different reference points, which is why ANKUSI lists both above — some shops and tuning guides quote offset, others quote backspacing.
Can I run staggered wheels (different sizes front and rear) on my Ford GT?
Yes — the Ford GT's factory and our recommended flush/max fitments already use staggered sizing (different width front and rear), and ANKUSI can forge matching staggered sets to your target offsets.
Wheel Installation Reference: Torque, Thread & TPMS
Thread & Fastener: M12x1.5, conical-seat lug nut.
Factory Torque Spec: 136 Nm (100 ft-lb). Covers most Ford passenger cars and crossovers (Fusion, Focus, Escape and similar) on M12x1.5 studs.
TPMS: TPMS (Tire Pressure Monitoring System) has been federally mandated on all new light vehicles sold in the US since the 2008 model year. If your wheels use OE-style sensors, have them transferred or cloned to the new wheels at installation.
Tire Pressure: Always set tire pressure to the value on your vehicle's tire placard (driver's doorjamb or glovebox), not the max PSI printed on the tire sidewall — this is trim- and tire-size-specific and stays the same reference point when you switch to a different wheel and tire combination.
Reference data compiled from published OEM service specifications and cross-checked against independent repair sources; always confirm against your owner's manual or door-jamb placard before installation.