Toyota 4Runner / Tacoma Off-Road Forged Wheels
Gold / Black 18-Spoke Beadlock · 6-Lug
2026 BAIC BJ40 Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting BAIC BJ40 wheels? This page gives the 2026 BAIC BJ40 bolt pattern (6x139.7), centre bore, factory rim size and the offset range for aftermarket and forged BAIC BJ40 rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
BAIC BJ40 (2026): 6x139.7 bolt pattern, 108.1mm center bore. Factory wheels: 17x7.5J F/R. Flush and max fitment confirmed on request.
Bolt Pattern6x139.7
Wheel Bolt/NutM12x1.5
Center Bore108.1mm
Wheel Load Rating900–1250 kg/wheel (SUV segment reference)
Caliper TypeFactory caliper package (OEM)
Year2026
CategorySUV
Data check: the bolt pattern and center bore on this page have not yet been confirmed by a second independent source. Measure your hub or ask us before ordering. How we verify
Built to order by ANKUSI — IATF 16949 & ISO 9001 certified forged wheel manufacturer, TÜV/SFI/VIA compliant. See our factory & certifications →
Forged wheels for the BAIC BJ40Machined to the 6x139.7 bolt pattern and 108.1 mm bore · 14–24 inch · offset calculated for your car · 3D drawing before production
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 vehicle this heavy, the wheel is a structural part before it is a styling part - it carries the load, the brake heat and the cornering forces all at once. A forged wheel buys back unsprung weight without giving up the load rating an SUV actually needs, which is the one number most cast aftermarket wheels quietly fall short on.
We publish the factory specification for the BAIC BJ40 below. We have not yet been able to verify aftermarket flush or maximum-aggressive offsets for this exact variant against a source we trust, so we are not listing any - an invented offset is worse than no offset when a wheel has to clear a caliper.
BAIC BJ40 OE Wheel Specs
The 2026 BAIC BJ40 (SUV) uses a 6x139.7 bolt pattern with a 108.1mm center bore. Factory wheels are 17x7.5J F/R.
Why the factory spec works for most owners:
- Keeps unsprung weight low to preserve the factory handling balance
- Matches the wider, performance-oriented tire sizing typical of this platform
- Maintains clearance for the factory brake package and suspension geometry
- Balances grip with ride comfort for daily and spirited driving
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the BAIC BJ40 (2026) we drill the 6x139.7 pattern and cut the centre bore to 108.1mm 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 — 6,436 vehicles, free to download, CC BY 4.0.
Aftermarket Fitment Data: Verification in Progress
Published aftermarket fitment for this exact variant is still thin, so we have not committed to a flush or maximum-aggressive figure. Our engineering team is still collecting verified data for this variant. In the meantime the factory specification above is accurate and is the safe reference point for ordering.
Send us your car and current wheel size on WhatsApp and our engineers will confirm a flush and a maximum fitment for this exact vehicle, usually within one working day.
What we do know: The factory 7.5Jx17 wheel runs ET25. Bolt pattern, centre bore and the factory wheel size match between our Russian-market fitment data and avtoreference.com.
Need a wheel for this car now? Contact ANKUSI with your target diameter, width and offset and our engineers will confirm the correct forged spec against your brake package before anything is cut. You can also use our Offset & Backspacing Calculator to work through the numbers yourself.
Custom Forged Wheels for the BAIC BJ40 (2026)
Everything above is reference data. If you want wheels actually built to it, that is what ANKUSI does: we are a forged wheel factory in Guangzhou, China, IATF 16949 and ISO 9001 certified, forging on our own 10,000-ton press and producing over 120,000 wheels a year. Forging blank, CNC machining, finishing, coating and inspection all happen in the same building — nothing is subcontracted and nothing is relabelled from another manufacturer.
Every set is cut to order, so the 6x139.7 pattern and the 108.1mm centre bore are machined for this car specifically rather than shimmed with adaptor rings. Diameter, width, offset, concavity, monoblock or multi-piece construction and the finish are all yours to choose.
We do not hold 6x139.7 wheels on a shelf — they are forged to order, which is why any offset, width and bore combination on this page is buildable rather than limited to a stock list.
Frequently Asked Questions
What bolt pattern (PCD) does the BAIC BJ40 use?
The 2026 BAIC BJ40 uses a 6x139.7 bolt pattern.
How many lug bolts does the BAIC BJ40 use?
The BAIC BJ40 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 BAIC BJ40?
The BAIC BJ40's center bore is 108.1mm. 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 BAIC BJ40?
Factory wheels on the BAIC BJ40 are 17x7.5J F/R.
Do I need wheel spacers for my BAIC BJ40?
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.
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 BAIC BJ40?
The BAIC BJ40 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.
Vehicles With the Same Hub as the BAIC BJ40 (6x139.7, 108.1 mm Bore)
In our database, 4 other vehicle entries from 3 makes use exactly the same 6x139.7 bolt pattern and 108.1 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 entries in our database (258 of 6,503); 1.9% of those also use a 108.1 mm center bore.
Hub-Centric Rings for a 108.1 mm Center Bore
A wheel with a center bore larger than 108.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 110.1 mm | 110.1 → 108.1 mm |
| 130.1 mm | 130.1 → 108.1 mm |
ANKUSI forged wheels are bored to exactly 108.1 mm for this vehicle, so no ring is needed.
Sources and Last Update
Bolt pattern and center bore were checked against at least two independent fitment references before publication.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.
Forged Wheel Designs for the BAIC BJ40
Every design below is forged to order, so it can be machined to the BAIC BJ40's 6x139.7 bolt pattern and 108.1 mm center bore, with the width and offset calculated for your setup.
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Bolt pattern and center bore on this page were cross-checked against at least two independent sources before publication. Last reviewed 2026-10-13. Spotted an error? Email info@ankusi.com and we will verify and correct it.