1961 Oldsmobile Cutlass Wheels & Rims: Bolt Pattern, Offset & Sizes

Fitting Oldsmobile Cutlass wheels? This page gives the 1961 Oldsmobile Cutlass bolt pattern (4x114.3), centre bore, factory rim size and the offset range for aftermarket and forged Oldsmobile Cutlass rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.

Quick answer: The 1961 Oldsmobile Cutlass uses a 4x114.3 bolt pattern and M12x1.5 lug nuts. Factory wheels: 13x4.5J ET0.

Forged wheels for the 1961 Oldsmobile Cutlass — drilled 4x114.3, built to the offset you choose. From $220 per wheel, made to order in 20–25 days.

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Oldsmobile Cutlass (1961): 4x114.3 bolt pattern, centre bore pending verification, OE 13x4.5J ET0. Forged wheel fitment specs from ANKUSI.

Bolt Pattern4x114.3
Wheel Bolt/NutM12x1.5 Nut
Center BorePending verification
Wheel Load Rating650–750 kg/wheel (Standard Passenger Car segment reference)
Year1961
CategoryCoupe

✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed September 18, 2026. How we verify

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Wheel Size & Offset at a Glance

Oldsmobile Cutlass wheel size and offset comparison by configuration
ConfigurationWheel Size & Offset
Factory (OE)13x4.5J ET0
Flush Fitment15x6J at ET10 offset

Forged Wheel Designs for the Oldsmobile Cutlass

Every design below is forged to order, so it can be machined to the Oldsmobile Cutlass's 4x114.3 bolt pattern, with the width and offset calculated for your setup.

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

Coupes and performance platforms are where rotational mass shows up fastest — in acceleration, in braking, and in how quickly the chassis changes direction. Forging lets us build to the same strength spec as the factory wheel at a meaningfully lower rotational weight, which is where the performance gain actually comes from, not just the visual one.

The Oldsmobile Cutlass ships from the factory on a 4x114.3 bolt pattern with a, centre bore pending verification and a 13x4.5J ET0 wheel. Our flush reference for the Oldsmobile Cutlass is 15x6J ET10.; our maximum aggressive reference is 16x7J ET0. — beyond that, expect clearance issues against the fender liner without further modification.

Oldsmobile Cutlass OE Wheel Specs

Verification notice (2026-09-19): the centre bore previously listed for this vehicle (66.5 mm) could not be confirmed by two independent references, so it has been withdrawn until verified. The bolt pattern shown has been confirmed.

The Oldsmobile Cutlass ships from the factory on 4x114.3 bolt pattern wheels with a, centre bore pending verification. The stock wheel size is 13x4.5J ET0, 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.

ANKUSI builds these wheels — we are the forging factory, not a reseller. For the Oldsmobile Cutlass (1961) we drill the 4x114.3 pattern 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.

IATF 16949 & ISO 9001 certified · own 10,000-ton press in Guangzhou · from a single set to a full container

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.

Offset and Backspacing: Factory Wheel vs Options

Backspacing ≈ width/2 + ET/25.4 + 0.5 in. "Inward" means closer to the suspension; "outward" means closer to the fender lip.

SetupSizeETBackspacingInward vs OEOutward vs OE
Factory (OE)13x4.5JET02.75 in (70 mm)——
Flush15x6JET103.89 in (99 mm)+29 mm+9 mm
Maximum16x7JET04.00 in (102 mm)+32 mm+32 mm

Frequently Asked Questions

What bolt pattern (PCD) does the Oldsmobile Cutlass use?
The 1961 Oldsmobile Cutlass uses a 4x114.3 bolt pattern.
How many lug bolts does the Oldsmobile Cutlass use?
The Oldsmobile Cutlass uses a 4-lug bolt pattern (4x114.3), so you need a 4-lug forged wheel to bolt straight on.
What size are the factory (stock) wheels on the Oldsmobile Cutlass?
Factory wheels on the Oldsmobile Cutlass are 13x4.5J ET0.
What does a flush wheel fitment look like on the Oldsmobile Cutlass?
For a flush look with minimal to no rubbing, we recommend 15x6J at ET10 offset as a starting point on a stock or mildly lowered Oldsmobile Cutlass.
Do I need wheel spacers for my Oldsmobile Cutlass?
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 Oldsmobile Cutlass?
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 3.89" 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 Oldsmobile Cutlass?
The Oldsmobile Cutlass 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.

Sources and Last Update

Data checked against: avtoreference.com, tirewheelguide.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: 13x4.5 wheels · 13 inch wheels.

Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.

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Bolt pattern and center bore on this page come from published fitment references and are still awaiting a second independent check. Last reviewed 2026-09-18. Spotted an error? Email info@ankusi.com and we will verify and correct it.

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