tirewheelguide

2018 Porsche 718 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x130 on every 2018 trim.

Tires for the 2018 Porsche 718

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

  1. 235/35R20 Best-rated standard on 3 trims · optional on 2
    Check price on Amazon · 235/35R20
  2. 235/40R19 Best-rated standard on 2 trims
    Check price on Amazon · 235/40R19
  3. 235/35R20 front + 265/35R20 rear Best-rated standard on 1 trim · optional on 1
    Check price on Amazon · 235/35R20 front Check price on Amazon · 265/35R20 rear

Also listed: 235/45R18 + 265/45R18 235/40R19 + 265/40R19

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Trims sold in 2018
7
Generation
I (982)

7 trims sold in 2018

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

Porsche 718 I (982)

2016–2025 7 trims
718 Boxster 296 hp · 2.0L MDD.PB F4 235/45R18 94Y / 265/45R18 101Y 5 fitments
Generation
982 · 2016–2025
Power
296 hp
Engine
2.0L MDD.PB F4, Petrol
Center bore
71.6 mm
Bolt pattern
5x130
Thread
M14 x 1.5
Check price on Amazon · 235/45R18 Check price on Amazon · 265/45R18 Wheels 18x8 ET57 · 5x130 · 71.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front235/45R18 94YRim 18x8 ET57 5x13033 psi
Rear265/45R18 101YRim 18x9.5 ET49 5x13033 psi
Front235/40R19 91YRim 19x8 ET57 5x13033 psi
Rear265/40R19 98YRim 19x10 ET45 5x13033 psi
Front235/40R19 91YRim 19x8 ET57 5x13033 psi
Rear265/40R19 98YRim 19x10 ET49 5x13033 psi
Front235/35R20 88YRim 20x8 ET57 5x13033 psi
Rear265/35R20 95YRim 20x10 ET45 5x13033 psi
Front235/35R20 88YRim 20x8.5 ET57 5x13033 psi
Rear265/35R20 95YRim 20x10.5 ET47 5x13033 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). ET57 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

718 Boxster GTS 361 hp · 2.5L MDJ.UB F4 235/35R20 88Y / 265/35R20 95Y 2 fitments
Generation
982 · 2016–2025
Power
361 hp
Engine
2.5L MDJ.UB F4, Petrol
Center bore
71.6 mm
Bolt pattern
5x130
Thread
M14 x 1.5
Check price on Amazon · 235/35R20 Check price on Amazon · 265/35R20 Wheels 20x8 ET57 · 5x130 · 71.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front235/35R20 88YRim 20x8 ET57 5x13033 psi
Rear265/35R20 95YRim 20x10 ET45 5x13033 psi
Front235/35R20 88YRim 20x8.5 ET57 5x13033 psi
Rear265/35R20 95YRim 20x10.5 ET47 5x13033 psi

How to read 88Y: 88 is the load index (up to 1,235 lb / 560 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET57 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

718 Boxster S +1 variant 345 hp · 2.5L MDD.NC F4 235/40R19 91Y 4 fitments

Same tires and wheels on: Cayman S

Generation
982 · 2016–2025
Power
345 hp
Engine
2.5L MDD.NC F4, Petrol
Center bore
71.6 mm
Bolt pattern
5x130
Thread
M14 x 1.5
Check price on Amazon · 235/40R19 Wheels 19x10 ET45 · 5x130 · 71.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
235/40R19 91YRim 19x10 ET45 5x13033 psi
235/40R19 91YRim 19x10 ET49 5x13033 psi
235/35R20 88YRim 20x10 ET45 5x13033 psi
235/35R20 88YRim 20x10.5 ET47 5x13033 psi

How to read 91Y: 91 is the load index (up to 1,356 lb / 615 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET45 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

718 Boxster T +2 variants 296 hp · 2.0L MDD.PB F4 235/35R20 88Y 2 fitments

Same tires and wheels on: Cayman GTS, Cayman T

Generation
982 · 2016–2025
Power
296 hp
Engine
2.0L MDD.PB F4, Petrol
Center bore
71.6 mm
Bolt pattern
5x130
Thread
M14 x 1.5
Check price on Amazon · 235/35R20 Wheels 20x10 ET45 · 5x130 · 71.6 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
235/35R20 88YRim 20x10 ET45 5x13033 psi
235/35R20 88YRim 20x10.5 ET47 5x13033 psi

How to read 88Y: 88 is the load index (up to 1,235 lb / 560 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET45 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.
Trims sold in 2018
7
Generation
I (982)
Other years
All years (2016–2025)

Considering a different size?

Compare your current tire size with the one you want: diameter change, ground clearance and speedometer error.

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