Volvo S60 / S90 Forged Wheels
Matte Silver Triangular Spoke
1987 Volvo 780 Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Volvo 780 wheels? This page gives the 1987 Volvo 780 bolt pattern (5x108), centre bore, factory rim size and the offset range for aftermarket and forged Volvo 780 rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 1987 Volvo 780 uses a 5x108 bolt pattern with a 65.1 mm centre bore and M14x1.5 lug bolts. Factory wheels: 15x6J at ET20. For aftermarket wheels, 16x7J ET15 sits flush and 17x7.5J ET10 is the most aggressive fit.
Forged wheels for the 1987 Volvo 780 — drilled 5x108 with a 65.1 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in about 25 days.
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Volvo 780 (1987): 5x108 bolt pattern, 65.1mm center bore. Factory wheels: 15x6J. Reference fitment ranges.
Bolt Pattern5x108
Wheel Bolt/NutM14x1.5 Bolt
Center Bore65.1mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year1987
CategoryLuxury Coupe
✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed September 18, 2026. How we verify
Built to order by ANKUSI — IATF 16949 & ISO 9001 certified forged wheel manufacturer, TÜV/SFI/VIA compliant. See our factory & certifications →
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 15x6J at ET20 |
| Flush Fitment | 16x7J at ET15 offset |
| Maximum Aggressive | 17x7.5J at ET10 offset |
Forged wheels for the Volvo 780Machined to the 5x108 bolt pattern and 65.1 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 performance-oriented coupe, the wheel is one of the few components where shaving weight has a compounding effect — less rotational mass means less work for the brakes, the drivetrain, and the chassis on every input. A forged wheel gets there without compromising the strength margin the factory engineered in.
The Volvo 780 runs a 5x108 bolt pattern, 65.1mm center bore, and a 15x6J at ET20, front and rear, wheel from the factory. Our Flush Fitment reference is 16x7J ET15, which tucks the tire under the fender lip on a stock-height Volvo 780. Our Maximum Aggressive reference is 17x7.5J ET10 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Volvo 780 OE Wheel Specs
The 1987 Volvo 780 (Luxury Coupe) uses a 5x108 bolt pattern with a 65.1mm center bore. Factory wheels are 15x6J at ET20.
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 Volvo 780 (1987) we drill the 5x108 pattern and cut the centre bore to 65.1mm 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.
Flush Fitment
For a flush look with minimal rubbing, 16x7J ET15 is the recommended starting point on a stock or mildly lowered Volvo 780.
Maximum Aggressive Fitment
17x7.5J ET10 is a more aggressive reference setup. Beyond this, expect rubbing under compression without fender rolling or camber correction.
5-Tier Configuration Options
A Factory-Style 15x6.0J ET20
Recommended setup: 15x6.0J ET20 | Economy impact: Negligible | Best for: Daily commuting, family use
Appearance: 7/10 | Comfort: 9.5/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $1,200-1,500 (wheels + tires + install)
B Comfortable Upgrade 16x6.5J ET18
Recommended setup: 16x6.5J ET18 | Economy impact: -2 to -4% | Best for: Daily / street
Appearance: 8/10 | Comfort: 9/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $1,950-2,550 (wheels + tires + install)
C Balanced / Flush Fit 16x7.0J ET15
Recommended setup: 16x7.0J ET15 | Economy impact: -4 to -6% | Best for: Street
Appearance: 8.5/10 | Comfort: 8/10 | Install difficulty: ★★☆☆☆
Estimated cost: $2,600-3,400 (wheels + tires + install)
D Aggressive 17x7.5J ET13
Recommended setup: 17x7.5J ET13 | Economy impact: -6 to -9% | Best for: Show / occasional track
Appearance: 9/10 | Comfort: 6.5/10 | Install difficulty: ★★★☆☆
Estimated cost: $3,900-5,000 (wheels + tires + install)
E Max Aggressive 17x7.5J ET10
Recommended setup: 17x7.5J ET10 | Economy impact: -8 to -12% | Best for: Show only
Appearance: 9.5/10 | Comfort: 4/10 | Install difficulty: ★★★★☆
Estimated cost: $4,800-6,200+ (wheels + tires + install)
Performance Comparison Matrix
| Metric | Tier A | Tier B | Tier C | Tier D | Tier E |
|---|---|---|---|---|---|
| Wheel Spec | 15x6.0J ET20 | 16x6.5J ET18 | 16x7.0J ET15 | 17x7.5J ET13 | 17x7.5J ET10 |
| Economy Impact | Negligible | -2 to -4% | -4 to -6% | -6 to -9% | -8 to -12% |
| Appearance | 7/10 | 8/10 | 8.5/10 | 9/10 | 9.5/10 |
| Comfort | 9.5/10 | 9/10 | 8/10 | 6.5/10 | 4/10 |
| Install Difficulty | ★☆☆☆☆ | ★☆☆☆☆ | ★★☆☆☆ | ★★★☆☆ | ★★★★☆ |
| Cost Range | $1,200-1,500 | $1,950-2,550 | $2,600-3,400 | $3,900-5,000 | $4,800-6,200+ |
| Best For | Daily commuting, family use | Daily / street | Street | Show / occasional track | Show only |
Real-World Reference Cases
The examples below are compiled from typical ANKUSI customer configurations and are labeled as reference cases, not individually verified real-world builds.
Case 1: Daily Driver (Factory-Style)
Profile: Everyday driving, prioritizes comfort and low running cost.
Setup: 15x6.0J ET20
Cost: ~$620
Outcome: Minimal visual change, ride and fuel economy essentially unaffected.
Case 2: Balanced Enthusiast (Balanced / Flush Fit)
Profile: Wants a sportier stance without sacrificing daily usability.
Setup: 16x7.0J ET15
Cost: ~$3,000
Outcome: Noticeable visual upgrade, fuel economy drop within the expected range.
Case 3: Show Build (Max Aggressive)
Profile: Built primarily for shows or occasional track/show use.
Setup: 17x7.5J ET10
Cost: ~$5,500
Outcome: Maximum visual impact; daily comfort and fuel economy are heavily compromised, physical test fit required before production.
Decision Guide
1
What's your primary use? Daily commuting → Tier A/B. Weekend street driving → Tier B/C. Show or occasional track use → Tier D/E.
2
What's your budget? Under $800 → Tier A. $800-3,400 → Tier B/C. $3,400+ → Tier D/E.
3
How much does fuel economy matter? Very important → Tier A. Somewhat important → Tier B/C. Not a priority → Tier D/E.
4
Still unsure? Tier C (Balanced / Flush Fit) is the default choice for most Volvo 780 owners.
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: 15x6J ET20 → ~4.29″ backspacing
- Flush: 16x7J ET15 → ~4.59″ backspacing
- Max: 17x7.5J ET10 → ~4.64″ backspacing
A Note on Clearance
Final clearance depends on the exact tire model, suspension height, brake package, alignment and vehicle tolerances. A physical test fit is recommended before production.
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 Volvo spec, or want a wheel built to a custom offset for your Volvo 780? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Custom Forged Wheels for the Volvo 780 (1987)
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 5x108 pattern and the 65.1mm 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 — most Volvo orders on this platform land somewhere between the 16x7J ET15 flush setup and the 17x7.5J ET10 aggressive setup referenced above.
Designs we already tool for the 5x108 pattern — each one is re-cut to your sizes and offsets:
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Volvo XC90 / S90 Forged Wheels – Gloss Black 5 Y-SpokeFrequently Asked Questions
What bolt pattern (PCD) does the Volvo 780 use?
The 1987 Volvo 780 uses a 5x108 bolt pattern.
How many lug bolts does the Volvo 780 use?
The Volvo 780 uses a 5-lug bolt pattern (5x108), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the Volvo 780?
The Volvo 780's center bore is 65.1mm. 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 Volvo 780?
Factory wheels on the Volvo 780 are 15x6J at ET20.
What is the biggest wheel size I can fit on my Volvo 780 without rubbing?
The most aggressive fitment we recommend without fender work is 17x7.5J at ET10 offset. 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 Volvo 780?
For a flush look with minimal to no rubbing, we recommend 16x7J at ET15 offset as a starting point on a stock or mildly lowered Volvo 780.
Do I need wheel spacers for my Volvo 780?
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 Volvo 780?
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 4.59" 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 Volvo 780?
The Volvo 780 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 Volvo 780 (5x108, 65.1 mm Bore)
In our database, 113 other vehicle entries from 15 makes use exactly the same 5x108 bolt pattern and 65.1 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.
5x108 is used by 7.7% of the vehicle pages in our English fitment guide (499 of 6,503); 22.8% of those also use a 65.1 mm center bore.
Hub-Centric Rings for a 65.1 mm Center Bore
A wheel with a center bore larger than 65.1 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 66.1 mm | 66.1 → 65.1 mm |
| 66.6 mm | 66.6 → 65.1 mm |
| 67.1 mm | 67.1 → 65.1 mm |
| 70.1 mm | 70.1 → 65.1 mm |
| 73.1 mm | 73.1 → 65.1 mm |
ANKUSI forged wheels are bored to exactly 65.1 mm for this vehicle, so no ring is needed.
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: 15x6 wheels · 15 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.
Forged Wheel Designs for the Volvo 780
Every design below is forged to order, so it can be machined to the Volvo 780's 5x108 bolt pattern and 65.1 mm center bore, with the width and offset calculated for your setup.
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Volvo S60 T8 Polestar Engineered Forged Wheels
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Volvo XC90 / S90 Forged Wheels
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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 2026-09-18. Spotted an error? Email info@ankusi.com and we will verify and correct it.