Volvo S60 / S90 Forged Wheels
Chrome 5 Y-Spoke
2004 Volvo C70 Convertible Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting Volvo C70 Convertible wheels? This page gives the 2004 Volvo C70 Convertible bolt pattern (5x108), centre bore, factory rim size and the offset range for aftermarket and forged Volvo C70 Convertible rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2004 Volvo C70 Convertible uses a 5x108 bolt pattern with a 65.1 mm centre bore and M14x1.5 lug bolts. Factory wheels: 16x7J at ET43. For aftermarket wheels, 18x8J ET38 sits flush and 19x8.5J ET35 is the most aggressive fit.
Forged wheels for the 2004 Volvo C70 Convertible — 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.
Get a quote for this car
Volvo C70 Convertible (2004): 5x108 bolt pattern, 65.1mm center bore. Factory wheels: 16x7J. Reference fitment ranges.
Bolt Pattern5x108
Wheel Bolt/NutM14x1.5 Bolt
Center Bore65.1mm
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year2004
CategoryConvertible
✓ 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) | 16x7J at ET43 |
| Flush Fitment | 18x8J at ET38 offset |
| Maximum Aggressive | 19x8.5J at ET35 offset |
Forged wheels for the Volvo C70 ConvertibleMachined 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
With less structural stiffness from the missing roof, a convertible's suspension tuning leans more heavily on unsprung mass control. Forged construction keeps wheel weight down at the same strength rating, which is one less variable working against the Volvo C70 Convertible's chassis.
The Volvo C70 Convertible runs a 5x108 bolt pattern, 65.1mm center bore, and a 16x7J at ET43, front and rear, wheel from the factory. Our Flush Fitment reference is 18x8J ET38, which tucks the tire under the fender lip on a stock-height Volvo C70 Convertible. Our Maximum Aggressive reference is 19x8.5J ET35 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
Volvo C70 Convertible OE Wheel Specs
The 2004 Volvo C70 Convertible (Convertible) uses a 5x108 bolt pattern with a 65.1mm center bore. Factory wheels are 16x7J at ET43.
Why the factory spec works for most owners:
- Matches the chassis tuning used to help offset reduced structural rigidity
- Balances ride comfort with the sportier character typical of this body style
- Keeps unsprung weight low for stable handling
- Maintains clearance for the factory brake package and suspension components
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Volvo C70 Convertible (2004) 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, 18x8J ET38 is the recommended starting point on a stock or mildly lowered Volvo C70 Convertible.
Maximum Aggressive Fitment
19x8.5J ET35 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 16x7.0J ET43
Recommended setup: 16x7.0J ET43 | 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 17x7.5J ET41
Recommended setup: 17x7.5J ET41 | 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 18x8.0J ET38
Recommended setup: 18x8.0J ET38 | 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 19x8.5J ET37
Recommended setup: 19x8.5J ET37 | 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 19x8.5J ET35
Recommended setup: 19x8.5J ET35 | 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 | 16x7.0J ET43 | 17x7.5J ET41 | 18x8.0J ET38 | 19x8.5J ET37 | 19x8.5J ET35 |
| 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: 16x7.0J ET43
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: 18x8.0J ET38
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: 19x8.5J ET35
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 C70 Convertible owners.
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: 16x7J ET43 → ~5.69″ backspacing
- Flush: 18x8J ET38 → ~6.0″ backspacing
- Max: 19x8.5J ET35 → ~6.13″ 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 C70 Convertible? 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 C70 Convertible (2004)
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 18x8J ET38 flush setup and the 19x8.5J ET35 aggressive setup referenced above.
Designs we already tool for the 5x108 pattern — each one is re-cut to your sizes and offsets:
Volvo XC90 / S90 Forged Wheels – Black / Machined Petal-Spoke Machined Face
Volvo S60 T8 Polestar Engineered Forged Wheels – Gloss Black Aero Disc (19-22in, 5×108)
Volvo OEM-Style Gloss Black Machined Twin 5-Spoke Forged Wheels – Volvo XC60 / XC90 Fitment (5-Lug)
Volvo XC90 / S90 Forged Wheels – Gloss Black 5 Y-SpokeFrequently Asked Questions
What bolt pattern (PCD) does the Volvo C70 Convertible use?
The 2004 Volvo C70 Convertible uses a 5x108 bolt pattern.
How many lug bolts does the Volvo C70 Convertible use?
The Volvo C70 Convertible 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 C70 Convertible?
The Volvo C70 Convertible'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 C70 Convertible?
Factory wheels on the Volvo C70 Convertible are 16x7J at ET43.
What is the biggest wheel size I can fit on my Volvo C70 Convertible without rubbing?
The most aggressive fitment we recommend without fender work is 19x8.5J at ET35 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 C70 Convertible?
For a flush look with minimal to no rubbing, we recommend 18x8J at ET38 offset as a starting point on a stock or mildly lowered Volvo C70 Convertible.
Do I need wheel spacers for my Volvo C70 Convertible?
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 C70 Convertible?
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" 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 C70 Convertible?
The Volvo C70 Convertible 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 C70 Convertible (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: 16x7 wheels · 16 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 C70 Convertible
Every design below is forged to order, so it can be machined to the Volvo C70 Convertible's 5x108 bolt pattern and 65.1 mm center bore, with the width and offset calculated for your setup.
Volvo XC90 / S90 Forged Wheels
Gloss Black 5 Y-Spoke
Porsche 911 / Panamera Forged Wheels
Gloss Black Mesh
BBS FI-R-Style Metallic Gray / Black 5-Spoke Forged Wheels - BMW M3 E92 / BMW M3 F80 Fitment (5-Lug)
BBS-Style forged wheels featuring the FI-R-style metallic gray / black 5-spoke design, forged to order at ANKUSI's Guangzhou plant. Bolt pattern, centre bore, diameter, width and offset are machined for your exact vehicle — this listing covers 5-lug applications.
Volvo OEM-Style Gloss Black Machined Twin 5-Spoke Forged Wheels
Volvo XC60 / XC90 Fitment · 5-Lug
Volvo S60 T8 Polestar Engineered Forged Wheels
Gloss Black Aero Disc · 19-22in, 5×108
Volvo XC90 / S90 Forged Wheels
Black / Machined Petal-Spoke Machined Face
Volvo OEM-Style Bronze Mesh Polished Wide Lip Forged Wheels
Volvo XC90 / XC60 Fitment · 5-Lug
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.