Bronze 5 Y-Spoke Forged Wheels
Monoblock · Bronze
2013 Ford Flex Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Ford Flex wheels? This page gives the 2013 Ford Flex bolt pattern (5x114.3), centre bore, factory rim size and the offset range for aftermarket and forged Ford Flex rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2013 Ford Flex uses a 5x114.3 bolt pattern with a 63.4 mm centre bore and M12x1.5 lug nuts. Factory wheels: 18x7.5J ET40. For aftermarket wheels, 20x9J ET35 sits flush.
Forged wheels for the 2013 Ford Flex — drilled 5x114.3 with a 63.4 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
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Ford Flex (2013): 5x114.3 bolt pattern, 63.4mm center bore, OE 18x7.5J ET40. Forged wheel fitment specs from ANKUSI.
Bolt Pattern5x114.3
Wheel Bolt/NutM12x1.5 Nut
Center Bore63.4mm
Wheel Load Rating900–1250 kg/wheel (SUV segment reference)
Year2013
Category5-Lug Large Sedan/SUV
✓ 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) | 18x7.5J ET40 |
| Flush Fitment | 20x9J at ET35 offset |
Forged Wheel Designs for the Ford Flex
Every design below is forged to order, so it can be machined to the Ford Flex's 5x114.3 bolt pattern and 63.4 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
SUVs carry more curb weight higher off the ground, so wheel strength and rotational mass both matter more than on a comparable sedan — a heavier wheel amplifies body roll and slows steering response exactly where the platform is already working hardest. Forging keeps the wheel light without giving up the load rating the factory suspension geometry was tuned around.
The Ford Flex ships from the factory on a 5x114.3 bolt pattern with a 63.4mm center bore and a 18x7.5J ET40 wheel. Our flush reference for the Ford Flex is 20x9J ET35.; our maximum aggressive reference is 22x9.5J ET30. — beyond that, expect clearance issues against the fender liner without further modification.
Ford Flex OE Wheel Specs
The Ford Flex ships from the factory on 5x114.3 bolt pattern wheels with a 63.4mm center bore. The stock wheel size is 18x7.5J ET40, offering a balanced ride that suits most owners without any rubbing or clearance concerns.
Why the factory spec works for most owners:
- Balances ride comfort with steering response and highway efficiency.
- Wide tire and wheel availability at the factory diameter keeps replacement costs low.
- Lower unsprung weight than larger aftermarket wheels helps ride quality and acceleration.
- Guaranteed clearance against brake calipers and suspension components.
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Ford Flex (2013) we drill the 5x114.3 pattern and cut the centre bore to 63.4mm 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 and Backspacing: Factory Wheel vs Options
Backspacing ≈ width/2 + ET/25.4 + 0.5 in. "Inward" means closer to the suspension; "outward" means closer to the fender lip.
| Setup | Size | ET | Backspacing | Inward vs OE | Outward vs OE |
|---|---|---|---|---|---|
| Factory (OE) | 18x7.5J | ET40 | 5.82 in (148 mm) | — | — |
| Flush | 20x9J | ET35 | 6.38 in (162 mm) | +14 mm | +24 mm |
| Maximum | 22x9.5J | ET30 | 6.43 in (163 mm) | +15 mm | +35 mm |
Vehicles With the Same Hub as the Ford Flex (5x114.3, 63.4 mm Bore)
In our database, 24 other vehicle entries from 4 makes use exactly the same 5x114.3 bolt pattern and 63.4 mm center bore. Factory wheels from these cars bolt on and center on the hub without rings; offset and width still have to be checked.
5x114.3 is used by 20.0% of the vehicle pages in our English fitment guide (1,300 of 6,503); 1.9% of those also use a 63.4 mm center bore.
Hub-Centric Rings for a 63.4 mm Center Bore
A wheel with a center bore larger than 63.4 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 64.1 mm | 64.1 → 63.4 mm |
| 65.1 mm | 65.1 → 63.4 mm |
| 66.1 mm | 66.1 → 63.4 mm |
| 66.6 mm | 66.6 → 63.4 mm |
| 73.1 mm | 73.1 → 63.4 mm |
ANKUSI forged wheels are bored to exactly 63.4 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the Ford Flex use?
The 2013 Ford Flex uses a 5x114.3 bolt pattern.
How many lug bolts does the Ford Flex use?
The Ford Flex 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 Flex?
The Ford Flex's center bore is 63.4mm. 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 Flex?
Factory wheels on the Ford Flex are 18x7.5J ET40.
What does a flush wheel fitment look like on the Ford Flex?
For a flush look with minimal to no rubbing, we recommend 20x9J at ET35 offset as a starting point on a stock or mildly lowered Ford Flex.
Do I need wheel spacers for my Ford Flex?
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 Flex?
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" of backspacing.
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 Flex?
The Ford Flex runs the same wheel size front and rear from the factory, so staggered fitment is not required. ANKUSI can still forge a staggered set (wider rear) on request if you want a more aggressive stance.
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.
Sources and Last Update
Data checked against: avtoreference.com.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Other cars on the same factory size: 18x7.5 wheels · 18 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.