tirewheelguide

2015 BMW i8 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2015 trim.

Tires for the 2015 BMW i8

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

  1. 195/50R20 front + 215/45R20 rear Best-rated standard on 2 trims · USA, Europe
    Check price on Amazon · 195/50R20 front Check price on Amazon · 215/45R20 rear
  2. 195/50R20 Best-rated standard on 1 trim · Japan
    Check price on Amazon · 195/50R20
  3. 215/45R20 Best-rated optional on 3 trims · USA, Europe, Japan
    Check price on Amazon · 215/45R20

Also listed: 215/45R20 + 245/40R20

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Trims sold in 2015
3
Generation
i8 sold in 3 market versions

3 trims sold in 2015

Sold in 3 market versions with different tire sizes. Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

BMW i8 i8

2013–2018 3 trims

Europe

1 trim
i8 1.5 357 hp · 1.5L B38K15A I3 · Hybrid 195/50R20 93W / 215/45R20 95W 3 fitments
Generation
i8 · 2013–2018
Market
Europe
Power
357 hp
Engine
1.5L B38K15A I3, Hybrid
Center bore
66.5 mm
Bolt pattern
5x112
Thread
M14 x 1.25
Check price on Amazon · 195/50R20 Check price on Amazon · 215/45R20 Wheels 20x7 ET36 · 5x112 · 66.5 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front195/50R20 93WRim 20x7 ET36 5x11232 psi
Rear215/45R20 95WRim 20x7.5 ET40 5x11232 psi
Front215/45R20 95WRim 20x7.5 ET40 5x11232 psi
Rear245/40R20 99WRim 20x8.5 ET50 5x11232 psi
215/45R20 95VRim 20x7.5 ET40 5x11232 psi

How to read 93W: 93 is the load index (up to 1,433 lb / 650 kg per tire) and W the speed rating (up to 168 mph / 270 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.

Japan

1 trim
i8 1.5 (DLA-2Z15) 357 hp · B38K15A I3 · Hybrid 195/50R20 93W 3 fitments
Generation
i8 · 2013–2018
Market
Japan
Power
357 hp
Engine
B38K15A I3, Hybrid
Center bore
66.5 mm
Bolt pattern
5x112
Thread
M14 x 1.25
Check price on Amazon · 195/50R20 Wheels 20x7.5 ET40 · 5x112 · 66.5 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
195/50R20 93WRim 20x7.5 ET40 5x11232 psi
215/45R20 95WRim 20x8.5 ET50 5x11232 psi
215/45R20 95VRim 20x7.5 ET40 5x11232 psi

How to read 93W: 93 is the load index (up to 1,433 lb / 650 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET40 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

USA

1 trim
i8 1.5 357 hp · 1.5L B38K15A I3 · Hybrid 195/50R20 93W / 215/45R20 95W 3 fitments
Generation
i8 · 2013–2018
Market
USA
Power
357 hp
Engine
1.5L B38K15A I3, Hybrid
Center bore
66.5 mm
Bolt pattern
5x112
Thread
M14 x 1.25
Check price on Amazon · 195/50R20 Check price on Amazon · 215/45R20 Wheels 20x7 ET36 · 5x112 · 66.5 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
Front195/50R20 93WRim 20x7 ET36 5x11232 psi
Rear215/45R20 95WRim 20x7.5 ET40 5x11232 psi
Front215/45R20 95WRim 20x7.5 ET40 5x11232 psi
Rear245/40R20 99WRim 20x8.5 ET50 5x11232 psi
215/45R20 95VRim 20x7.5 ET40 5x11232 psi

How to read 93W: 93 is the load index (up to 1,433 lb / 650 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET36 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 2015
3
Generation
i8 sold in 3 market versions
Other years
All years (2013–2020)

Considering a different size?

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

Open the size calculator

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