2020 Cadillac CT5-V tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x120 on every 2020 trim.

Tires for the 2020 Cadillac CT5-V

Sizes most trims come with first. Open your trim below for its exact size.

245/40R19 Best-rated standard on 1 trim · optional on 1

Check price on Amazon · 245/40R19
245/40R19 front + 285/35R19 rear Best-rated standard on 1 trim · optional on 1

Check price on Amazon · 245/40R19 front Check price on Amazon · 285/35R19 rear
255/35R20 Best-rated optional on 2 trims

Check price on Amazon · 255/35R20

Also listed: 255/35R20 + 295/30R20

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Trims sold in 2020: 2
Generations: GM Alpha CT5-V
Other years: 2020
2021
2022
2023
2024
2025
2026
All years (2020–2026)

2 trims sold in 2020

Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Cadillac CT5-V GM Alpha

2020–2023 1 trim

CT5-V 3.0T 360 hp · 3.0L LGY V6 245/40R19 94Y / 285/35R19 99Y 4 fitments

Generation: GM Alpha · 2020–2023
Power: 360 hp
Engine: 3.0L LGY V6, Petrol
Center bore: 66.9 mm
Bolt pattern: 5x120
Thread: M14 x 1.5

Check price on Amazon · 245/40R19 Check price on Amazon · 285/35R19 Wheels 19x8.5 ET25 · 5x120 · 66.9 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front245/40R19 94Y	Rim 19x8.5 ET25 5x120	41 psi
Rear285/35R19 99Y	Rim 19x9.5 ET45 5x120	41 psi
Front255/35R20 97Y	Rim 20x9 ET25 5x120	41 psi
Rear295/30R20 97Y	Rim 20x10 ET45 5x120	41 psi
245/40R19 94Y	Rim 19x8.5 ET29 5x120	41 psi
255/35R20 97Y	Rim 20x8.5 ET38 5x120	41 psi

How to read 94Y: 94 is the load index (up to 1,477 lb / 670 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET25 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Cadillac CT5-V CT5-V

2020–2024 USA 1 trim

CT5-V 3.0TT 360 hp · 3.0 L LGY V6 Petrol 3.0 L LGY V6 245/40R19 4 fitments

Generation: CT5-V · 2020–2024
Market: USA
Power: 360 hp
Engine: 3.0 L LGY V6 Petrol 3.0 L LGY V6, Petrol
Center bore: 66.9 mm
Bolt pattern: 5x120
Thread: M14 x 1.5

Check price on Amazon · 245/40R19 Wheels 19x8.5 ET29 · 5x120 · 66.9 mm on Amazon

Fit	Tire size	Rim size and bolt pattern	Pressure, psi
OE	245/40R19	Rim 19x8.5 ET29 5x120	41 psi
Alt	Front245/40R19	Rim 19x8.5 ET25 5x120	41 psi
	Rear285/35R19	Rim 19x9.5 ET45 5x120	41 psi
Alt	255/35R20	Rim 20x8.5 ET38 5x120	44 psi
Alt	Front255/35R20	Rim 20x9 ET25 5x120	44 psi
	Rear295/30R20	Rim 20x10 ET45 5x120	44 psi

What these columns mean

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.