2020 Cadillac CT4-V tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x115 on every 2020 trim.

Tires for the 2020 Cadillac CT4-V

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

235/40R18 front + 265/35R18 rear Best-rated standard on 1 trim

Check price on Amazon · 235/40R18 front Check price on Amazon · 265/35R18 rear
235/40R18 Best-rated optional on 1 trim

Check price on Amazon · 235/40R18
235/35R19 Best-rated optional on 1 trim

Check price on Amazon · 235/35R19

Also listed: 235/35R19 + 265/30R19

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Trims sold in 2020: 1
Generation: GM Alpha
Other years: 2020
2021
2022
2023
2024
2025
2026
All years (2020–2026)

1 trim sold in 2020

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

Cadillac CT4-V GM Alpha

2020–2023 1 trim

CT4-V 2.7T 325 hp · 2.7L L3B I4 235/40R18 95Y / 265/35R18 97Y 4 fitments

Generation: GM Alpha · 2020–2023
Power: 325 hp
Engine: 2.7L L3B I4, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 235/40R18 Check price on Amazon · 265/35R18 Wheels 18x8 ET35 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front235/40R18 95Y	Rim 18x8 ET35 ~~5x115~~	41 psi
Rear265/35R18 97Y	Rim 18x8.5 ET40 ~~5x115~~	46 psi
Front235/35R19 91Y	Rim 19x8 ET35 ~~5x115~~	41 psi
Rear265/30R19 93Y	Rim 19x9 ET40 ~~5x115~~	46 psi
235/40R18 95Y	Rim 18x8 ET35 ~~5x115~~	41 psi
235/35R19 91Y	Rim 19x8 ET35 ~~5x115~~	41 psi

How to read 95Y: 95 is the load index (up to 1,521 lb / 690 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET35 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean

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.