Do I need wheel spacers for my Singer All-terrain Competition Study?

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 Singer All-terrain Competition Study?

The Singer All-terrain Competition Study 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.

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Singer All-terrain Competition Study (2021) Wheel Fitment

Singer All-terrain Competition Study (2021): 16x8.0J F/R on a 5*130 hub. Competition/one-off vehicle -- no aftermarket data published.

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

Singer All-terrain Competition Study Wheel & Hub Specs

The 2021 Singer All-terrain Competition Study (Restomod Commission) runs 16x8.0J F/R on a 5*130 homologated bolt pattern. These are the factory or homologated racing specifications, not a standard retail bolt pattern.

Why We Don't Publish Generic Aftermarket Fitment for This Vehicle

The Singer All-terrain Competition Study is a competition, prototype, vintage or one-off commissioned vehicle. Unlike a mass-produced road car, there is no generic enthusiast community publishing "Flush" or "Maximum Aggressive" offset ranges for it, and its hub is homologated to a specific racing application. Publishing invented offset numbers for a car like this would be misleading, so we don't.

Custom & Motorsport Wheel Program

ANKUSI forges wheels to exact motorsport specifications -- centerlock, beadlock, homologation-compliant, restoration-correct, or one-off replica builds. Contact ANKUSI with your exact hub pattern, offset and application and we will confirm whether we can build for it.

Frequently Asked Questions

Does the Singer All-terrain Competition Study use a standard bolt pattern?
No. It uses a 5*130 homologated bolt pattern, not a retail lug-bolt pattern, so off-the-shelf aftermarket road wheels do not apply.

Can ANKUSI build wheels for a Singer All-terrain Competition Study?
Yes, on a custom-quote basis for restoration, motorsport or replica applications. Contact us with your exact specifications.

Why isn't there a Flush/Max fitment guide for this car?
Flush and Maximum Aggressive figures on our other pages come from verified enthusiast community data for mass-produced road cars. No such generic data exists for this vehicle, so we don't fabricate it.

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