2025 Cadillac Optiq tire and wheel sizes, bolt pattern and tire pressure

Check the tables below for every tire size, wheel size, bolt pattern (PCD), rim offset and tire pressure fitted to the 2025 Cadillac Optiq.

2025 Cadillac Optiq tire sizes

Bolt pattern

Other years

Fitment tables

Open a trim for its factory package and every alternative size, front and rear.

2023 – 2027 2 trims

283 hp · Electric x / 245/50 R20 3 fitments

GenerationOptiq 2023–2027

MarketChina

Power283 hp

EngineElectric, Electric

Center bore66.9 mm

PCD6x120

ThreadM14 x 1.5

Fit	Tire size	Rim size and bolt pattern	Pressure, psi	Prices
OE	Frontx	~~6x120~~	42	Tires
	Rear245/50 R20	20x8.5 ET55 ~~6x120~~	42	Tires Rims
Alt	Frontx	~~6x120~~	39	Tires
	Rear245/55 R19	19x8.5 ET55 ~~6x120~~	39	Tires Rims
Alt	Frontx	~~6x120~~	45	Tires
	Rear275/40 R21	21x9 ET57 ~~6x120~~	45	Tires Rims

315 hp · Electric x 3 fitments

GenerationOptiq 2023–2027

MarketUSA

Power315 hp

EngineElectric, Electric

Center bore66.9 mm

PCD6x120

ThreadM14 x 1.5

Fit	Tire size	Rim size and bolt pattern	Pressure, psi	Prices
OE	x	~~6x120~~	42	Tires
Alt	x	~~6x120~~	39	Tires
Alt	x	~~6x120~~	45	Tires

Reading the table

OE fitment: The package fitted at the factory for that trim.
Alternative: A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
Rim size: Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD): Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore: Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure: Recommended cold inflation pressure for that axle, in psi.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.