2021 Dodge Challenger SRT tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x115 on every 2021 trim.

Tires for the 2021 Dodge Challenger SRT

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

275/40R20 Best-rated standard on 2 trims · optional on 1

Check price on Amazon · 275/40R20
245/45R20 Best-rated standard on 1 trim

Check price on Amazon · 245/45R20
305/35R20 Best-rated optional on 2 trims

Check price on Amazon · 305/35R20

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Trims sold in 2021: 3
Generation: LC
Other years: 2017
2018
2019
2020
2021
2022
2023
2024
All years (2008–2024)

3 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.

Dodge Challenger SRT LC

2008–2023 3 trims

Challenger SRT 6.2i +1 variant 717 hp · 6.2L V8 275/40R20 106Y 2 fitments

2 versions of this trim share these tires and wheels.

Generation: LC · 2008–2023
Power: 717 hp
Engine: 6.2L V8, Petrol
Center bore: 71.6 mm
Bolt pattern: 5x115
Thread: M14 x 1.5

Check price on Amazon · 275/40R20 Wheels 20x9.5 ET18.5 · 5x115 · 71.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
275/40R20 106Y	Rim 20x9.5 ET18.5 ~~5x115~~	36 psi
305/35R20 99Y	Rim 20x11 ET-2.5 ~~5x115~~	39 psi

How to read 106Y: 106 is the load index (up to 2,094 lb / 950 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET18.5 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Challenger SRT 6.4i 485 hp · 6.4L V8 245/45R20 95Y 2 fitments

Generation: LC · 2008–2023
Power: 485 hp
Engine: 6.4L V8, Petrol
Center bore: 71.6 mm
Bolt pattern: 5x115
Thread: M14 x 1.5

Check price on Amazon · 245/45R20 Wheels 20x9 ET25.5 · 5x115 · 71.6 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
245/45R20 95Y	Rim 20x9 ET25.5 ~~5x115~~	36 psi
275/40R20 96Y	Rim 20x9.5 ET18.5 ~~5x115~~	36 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). ET25.5 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.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.