2018 Rolls-Royce Cullinan tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2018 trim.

Tires for the 2018 Rolls-Royce Cullinan

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

255/50R21 front + 285/45R21 rear Best-rated standard on 1 trim

Check price on Amazon · 255/50R21 front Check price on Amazon · 285/45R21 rear
255/45R22 front + 285/40R22 rear Best-rated optional on 1 trim

Check price on Amazon · 255/45R22 front Check price on Amazon · 285/40R22 rear
295/30R24 Best-rated optional on 1 trim

Check price on Amazon · 295/30R24

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Trims sold in 2018: 1
Generation: II (RR31)
Other years: 2018
2019
2020
2021
2022
2023
2024
2025
All years (2018–2026)

1 trim sold in 2018

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

Rolls-Royce Cullinan II (RR31)

2018–2024 1 trim

Cullinan 6.75 563 hp · 6.75L N74B68 V12 255/50R21 109Y / 285/45R21 113Y 3 fitments

Generation: RR31 · 2018–2024
Power: 563 hp
Engine: 6.75L N74B68 V12, Petrol
Center bore: 66.6 mm
Bolt pattern: 5x112
Thread: M14 x 1.25

Check price on Amazon · 255/50R21 Check price on Amazon · 285/45R21 Wheels 21x8 ET35 · 5x112 · 66.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front255/50R21 109Y	Rim 21x8 ET35 ~~5x112~~	–
Rear285/45R21 113Y	Rim 21x9.5 ET35 ~~5x112~~	–
Front255/45R22 107Y	Rim 22x8.5 ET35 ~~5x112~~	–
Rear285/40R22 110Y	Rim 22x9.5 ET35 ~~5x112~~	–
295/30R24 104Y	Rim 24x10 ET25 ~~5x112~~	–

How to read 109Y: 109 is the load index (up to 2,271 lb / 1,030 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.