2021 BMW i4 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2021 trim.

Tires for the 2021 BMW i4

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

245/45R18 front + 255/45R18 rear Best-rated standard on 2 trims

Check price on Amazon · 245/45R18 front Check price on Amazon · 255/45R18 rear
225/55R17 Best-rated optional on 2 trims

Check price on Amazon · 225/55R17
245/45R18 Best-rated optional on 2 trims

Check price on Amazon · 245/45R18

Also listed: 245/40R19 + 255/40R19 245/35R20 + 255/35R20 255/35R20 + 285/30R20

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Trims sold in 2021: 2
Generation: G26
Other years: 2021
2022
2023
2024
2025
2026
All years (2021–2026)

2 trims sold in 2021

Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

BMW i4 G26

2021–2024 2 trims

i4 eDrive40 +1 variant 335 hp · Electric 245/45R18 100Y / 255/45R18 103Y 10 fitments

Same tires and wheels on: M50

Generation: G26 · 2021–2024
Power: 335 hp
Engine: Electric
Center bore: 66.6 mm
Bolt pattern: 5x112
Thread: M14 x 1.25

Check price on Amazon · 245/45R18 Check price on Amazon · 255/45R18 Wheels 18x8.5 ET36 · 5x112 · 66.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front245/45R18 100Y	Rim 18x8.5 ET36 5x112	–
Rear255/45R18 103Y	Rim 18x9 ET42 5x112	–
Front245/40R19 98Y	Rim 19x8.5 ET35 5x112	–
Rear255/40R19 100Y	Rim 19x9 ET42 5x112	–
Front245/40R19 98Y	Rim 19x8.5 ET35 5x112	–
Rear255/40R19 100Y	Rim 19x9 ET42 5x112	–
Front255/35R20 97Y	Rim 19x8.5 ET35 5x112	–
Rear285/30R20 99Y	Rim 19x9 ET42 5x112	–
Front245/35R20 95Y	Rim 20x8.5 ET35 5x112	–
Rear255/35R20 97Y	Rim 20x9 ET42 5x112	–
225/55R17 101Y	Rim 17x7.5 ET30 5x112	–
225/55R17 101H	Rim 17x7.5 ET30 5x112	–
245/45R18 100H	Rim 18x8.5 ET36 5x112	–
245/45R18 100Y	Rim 18x8.5 ET36 5x112	–
245/45R18 100Y	Rim 18x8.5 ET36 5x112	–

How to read 100Y: 100 is the load index (up to 1,764 lb / 800 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET36 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

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.