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2021 GWM Cannon Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting GWM Cannon wheels? This page gives the 2021 GWM Cannon bolt pattern (6x139.7), centre bore, factory rim size and the offset range for aftermarket and forged GWM Cannon rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2021 GWM Cannon uses a 6x139.7 bolt pattern with a 100.1 mm centre bore. Factory wheels: 18x8J ET43. For aftermarket wheels, 17x9J ET12 sits flush.
Forged wheels for the 2021 GWM Cannon — drilled 6x139.7 with a 100.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.
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GWM Cannon (2021): 6x139.7 bolt pattern, 100.1mm center bore, OE 18x8J ET43. Forged wheel fitment specs from ANKUSI.
Bolt Pattern6x139.7
Center Bore100.1mm
Year2021
CategoryTruck
✓ 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) | 18x8J ET43 |
| Flush Fitment | 17x9J at ET12 offset |
Forged Wheel Designs for the GWM Cannon
Every design below is forged to order, so it can be machined to the GWM Cannon's 6x139.7 bolt pattern and 100.1 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 truck platform, wheel weight sits right at the unsprung mass budget the suspension engineers already spent on payload and towing capacity. A forged wheel keeps that budget intact — same strength, less rotational inertia — instead of eating into the margin the way a cheap cast aftermarket wheel can.
The GWM Cannon ships from the factory on a 6x139.7 bolt pattern with a 100.1mm center bore and a 18x8J ET43 wheel. Our flush reference for the GWM Cannon is 17x9J ET12.; our maximum aggressive reference is 18x9J ET0. — beyond that, expect clearance issues against the fender liner without further modification.
GWM Cannon OE Wheel Specs
The GWM Cannon ships from the factory on 6x139.7 bolt pattern wheels with a 100.1mm center bore. The stock wheel size is 18x8J ET43, 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 GWM Cannon (2021) we drill the 6x139.7 pattern and cut the centre bore to 100.1mm 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) | 18x8J | ET43 | 6.19 in (157 mm) | — | — |
| Flush | 17x9J | ET12 | 5.47 in (139 mm) | −18 mm | +44 mm |
| Maximum | 18x9J | ET0 | 5.00 in (127 mm) | −30 mm | +56 mm |
Vehicles With the Same Hub as the GWM Cannon (6x139.7, 100.1 mm Bore)
In our database, 21 other vehicle entries from 8 makes use exactly the same 6x139.7 bolt pattern and 100.1 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.
6x139.7 is used by 4.0% of the vehicle pages in our English fitment guide (258 of 6,503); 8.5% of those also use a 100.1 mm center bore.
Hub-Centric Rings for a 100.1 mm Center Bore
A wheel with a center bore larger than 100.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 106.1 mm | 106.1 → 100.1 mm |
| 108.1 mm | 108.1 → 100.1 mm |
| 110.1 mm | 110.1 → 100.1 mm |
| 130.1 mm | 130.1 → 100.1 mm |
ANKUSI forged wheels are bored to exactly 100.1 mm for this vehicle, so no ring is needed.
Frequently Asked Questions
What bolt pattern (PCD) does the GWM Cannon use?
The 2021 GWM Cannon uses a 6x139.7 bolt pattern.
How many lug bolts does the GWM Cannon use?
The GWM Cannon uses a 6-lug bolt pattern (6x139.7), so you need a 6-lug forged wheel to bolt straight on.
What is the center bore size on the GWM Cannon?
The GWM Cannon's center bore is 100.1mm. 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 GWM Cannon?
Factory wheels on the GWM Cannon are 18x8J ET43.
What does a flush wheel fitment look like on the GWM Cannon?
For a flush look with minimal to no rubbing, we recommend 17x9J at ET12 offset as a starting point on a stock or mildly lowered GWM Cannon.
Do I need wheel spacers for my GWM Cannon?
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 GWM Cannon?
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 5.47" 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 GWM Cannon?
The GWM Cannon 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.
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: 18x8 wheels · 18 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.