MG XPower SVR (2004) Wheel Fitment

MG XPower SVR (2004): 5x108 bolt pattern, 67.1mm center bore, OE F 18x8J ET35 / R 18x10J ET35. Forged wheel fitment specs from ANKUSI.

Bolt Pattern5x108

Wheel Bolt/NutM12x1.5 Nut

Center Bore67.1mm

Wheel Load Rating700–850 kg/wheel (Performance / Sports Car segment reference)

Year2004

Category5-Lug Supercar (2-Piece)

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Wheel Size & Offset at a Glance

MG XPower SVR wheel size and offset comparison by configuration
Configuration	Wheel Size & Offset
Flush Fitment	F 19x9J ET25 / R 19x11J ET25

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.

Diagram showing wheel measurement points: centerline, center bore diameter, PCD, offset, rim width and diameter — Centerline, center bore, PCD, offset, width & diameter

Diagram comparing positive, zero, and negative wheel offset relative to the wheel centerline — Positive vs. zero vs. negative offset

ANKUSI Engineering Expert Advice

On a supercar, wheel weight is one of the few remaining places to cut rotational mass without touching the powertrain or chassis the factory already optimized. Forging gets there at the same structural margin as the OE wheel, which is exactly the trade a car built around outright performance rewards.

The MG XPower SVR ships from the factory on a 5x108 bolt pattern with a 67.1mm center bore and a F 18x8J ET35 / R 18x10J ET35 wheel. Our flush reference for the MG XPower SVR is F 19x9J ET25 / R 19x11J ET25.; our maximum aggressive reference is F 19x9.5J ET20 / R 20x11.5J ET20. — beyond that, expect clearance issues against the fender liner without further modification.

MG XPower SVR OE Wheel Specs

The MG XPower SVR ships from the factory on 5x108 bolt pattern wheels with a 67.1mm center bore. The stock wheel size is F 18x8J ET35 / R 18x10J ET35, 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.

Flush Fitment

For a flush look without any body modification, most MG XPower SVR owners run F 19x9J ET25 / R 19x11J ET25. This setup tucks the wheel face closer to the fender lip while staying within safe load and clearance limits.

Maximum Aggressive Fitment

Owners chasing a more aggressive stance push to F 19x9.5J ET20 / R 20x11.5J ET20. Chassis: Qvale Mangusta derived RWD chassis; coilovers. Wheels: 5x108 PCD. Brakes: Brembo 4-piston caliper clearance required. Tires: 225/40 R18 F, 265/35 R18 R (Optional 265/35 R19 F, 305/30 R19 R). Clearance should be verified before ordering, especially on lowered cars.

5-Tier Configuration Options

A – Factory-Style: 18x8J ET35

Recommended setup: Factory-matched forged replacement

Economy impact: None

Best for: Daily drivers, warranty-conscious owners

Appearance 5/10 | Comfort 10/10 | Install difficulty ★☆☆☆

Estimated cost range: $$ (OE replacement)

B – Comfortable Upgrade: F 18.5x8.5J ET30 / R 18.5x10.5J ET30

Recommended setup: Direct bolt-on, factory suspension

Economy impact: Minimal

Best for: Owners who want a mild upgrade with no compromise

Appearance 6/10 | Comfort 9/10 | Install difficulty ★☆☆☆

Estimated cost range: $$ - $$$

C – Balanced / Flush Fit: F 19x9J ET25 / R 19x11J ET25

Recommended setup: Flush forged wheels, stock or mild lowering

Economy impact: Slight increase

Best for: Enthusiasts wanting a flush look daily

Appearance 8/10 | Comfort 7/10 | Install difficulty ★★☆☆

Estimated cost range: $$$

D – Aggressive: F 19x9.5J ET23 / R 19.5x11.5J ET23

Recommended setup: Wider forged wheels, coilovers or lowering springs

Economy impact: Noticeable increase

Best for: Show-and-drive builds

Appearance 9/10 | Comfort 5/10 | Install difficulty ★★★☆

Estimated cost range: $$$$

E – Max Aggressive: F 19x9.5J ET20 / R 20x11.5J ET20

Recommended setup: Chassis: Qvale Mangusta derived RWD chassis; coilovers. Wheels: 5x108 PCD. Brakes: Brembo 4-piston caliper clearance required. Tires: 225/40 R18 F, 265/35 R18 R (Optional 265/35 R19 F, 305/30 R19 R).

Economy impact: Significant increase

Best for: Show builds, weekend cars

Appearance 10/10 | Comfort 3/10 | Install difficulty ★★★★

Estimated cost range: $$$$$

Performance Comparison Matrix

Wheel Spec	Tier A	Tier B	Tier C	Tier D	Tier E
Wheel Spec	18x8J ET35	F 18.5x8.5J ET30 / R 18.5x10.5J ET30	F 19x9J ET25 / R 19x11J ET25	F 19x9.5J ET23 / R 19.5x11.5J ET23	F 19x9.5J ET20 / R 20x11.5J ET20
Economy Impact	None	Minimal	Slight increase	Noticeable increase	Significant increase
Appearance	5/10	6/10	8/10	9/10	10/10
Comfort	10/10	9/10	7/10	5/10	3/10
Install Difficulty	★☆☆☆	★☆☆☆	★★☆☆	★★★☆	★★★★
Cost Range	$$ (OE replacement)	$$ - $$$	$$$	$$$$	$$$$$
Best For	Daily drivers, warranty-conscious owners	Owners who want a mild upgrade with no compromise	Enthusiasts wanting a flush look daily	Show-and-drive builds	Show builds, weekend cars

Real-World Reference Cases

The following builds are compiled from typical ANKUSI customer configurations for this platform and are illustrative, not individually verified real-world builds.

Case 1: Daily Driver (Factory-Style)

Profile: Commuter prioritizing comfort and reliability.

Setup: F 18x8J ET35 / R 18x10J ET35 forged wheels, factory suspension.

Cost: $$ (OE replacement)

Outcome: No clearance issues, factory ride quality retained.

Case 2: Balanced Enthusiast (Balanced / Flush Fit)

Profile: Weekend driver wanting a flush stance without sacrificing daily usability.

Setup: F 19x9J ET25 / R 19x11J ET25 forged wheels.

Cost: $$$

Outcome: Flush fitment with acceptable ride comfort for daily use.

Case 3: Show Build (Max Aggressive)

Profile: Show-and-shine build prioritizing stance over comfort.

Setup: F 19x9.5J ET20 / R 20x11.5J ET20 forged wheels. Chassis: Qvale Mangusta derived RWD chassis; coilovers. Wheels: 5x108 PCD. Brakes: Brembo 4-piston caliper clearance required. Tires: 225/40 R18 F, 265/35 R18 R (Optional 265/35 R19 F, 305/30 R19 R).

Cost: $$$$$

Outcome: Maximum aggressive stance; clearance verified case-by-case.

Decision Guide

1. What is this car mainly used for? Daily driving favors Tier A or B; weekend/show use favors Tier D or E.

2. What is your budget? Tiers A-B keep cost low; Tiers D-E cost significantly more in wheels, tires, and possible suspension work.

3. Is fuel economy and ride comfort a priority? If yes, stay at Tier A or B; heavier, wider wheels at Tier D-E reduce efficiency and comfort.

4. Still unsure? Tier C (Balanced / Flush Fit) is the safe default for most MG XPower SVR owners.

Offset & Backspacing Reference

Backspacing is calculated as: wheel width (in) / 2 + offset (mm) / 25.4 + 0.5.

OE 18x8J ET35: backspacing ≈ 5.88"
Flush 19x9J ET25: backspacing ≈ 5.98"
Max 19x9.5J ET20: backspacing ≈ 6.04"

Use our offset & backspacing calculator to fine-tune your fitment, or contact ANKUSI for a custom forged wheel quote for your MG XPower SVR.

Frequently Asked Questions

What bolt pattern (PCD) does the MG XPower SVR use?

The 2004 MG XPower SVR uses a 5x108 bolt pattern.

How many lug bolts does the MG XPower SVR use?

The MG XPower SVR uses a 5-lug bolt pattern (5x108), so you need a 5-lug forged wheel to bolt straight on.

What does a flush wheel fitment look like on the MG XPower SVR?

For a flush look with minimal to no rubbing, we recommend F 19x9J ET25 / R 19x11J ET25 as a starting point on a stock or mildly lowered MG XPower SVR.

Do I need wheel spacers for my MG XPower SVR?

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 MG XPower SVR?

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 5.98" backspacing up front and 6.98" in the rear.

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 MG XPower SVR?

Yes — the MG XPower SVR's factory and our recommended flush/max fitments already use staggered sizing (different width front and rear), and ANKUSI can forge matching staggered sets to your target offsets.

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