1998 BMW Alpina B10 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x120 on every 1998 trim.

Tires for the 1998 BMW Alpina B10

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

  1. 235/40R18 Best-rated standard on 3 trims · Japan, Europe
  2. 235/40R18 front + 265/35R18 rear Best-rated standard on 3 trims · Europe, Japan

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Trims sold in 1998
6
Generation
E39 sold in 2 market versions

6 trims sold in 1998

Sold in 2 market versions. 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 Alpina B10 E39

1996–2004 6 trims

Europe

3 trims
B10 B10 3.2 +1 variant 256 hp · 3.2L M60B30 I6 235/40R18 91Y / 265/35R18 93Y 1 fitment

Same tires and wheels on: B10 4.6

Generation
E39 · 1996–2004
Market
Europe
Power
256 hp
Engine
3.2L M60B30 I6, Petrol
Center bore
74.1 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Tire sizeRim size and bolt patternPressure, psi
Front235/40R18 91YRim 18x8 ET20 5x12038 psi
Rear265/35R18 93YRim 18x9 ET24 5x12038 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). ET20 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

B10 B10 4.6 342 hp · 4.6L M62B46 V8 235/40R18 91Y 1 fitment
Generation
E39 · 1996–2004
Market
Europe
Power
342 hp
Engine
4.6L M62B46 V8, Petrol
Center bore
74.1 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Tire sizeRim size and bolt patternPressure, psi
235/40R18 91YRim 18x9 ET24 5x12038 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). ET24 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

Japan

3 trims
B10 B10 3.2 (E-AE43) 256 hp · 3.2L M60B30 I6 235/40R18 91Y / 265/35R18 93Y 1 fitment
Generation
E39 · 1996–2004
Market
Japan
Power
256 hp
Engine
3.2L M60B30 I6, Petrol
Center bore
74.1 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Tire sizeRim size and bolt patternPressure, psi
Front235/40R18 91YRim 18x8 ET20 5x12038 psi
Rear265/35R18 93YRim 18x9 ET24 5x12038 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). ET20 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

B10 B10 4.6 (E-AF4) +1 variant 342 hp · 4.6L M62B46 V8 235/40R18 91Y 1 fitment

Same tires and wheels on: B10 4.6 (E-JF4)

Generation
E39 · 1996–2004
Market
Japan
Power
342 hp
Engine
4.6L M62B46 V8, Petrol
Center bore
74.1 mm
Bolt pattern
5x120
Thread
M12 x 1.5
Tire sizeRim size and bolt patternPressure, psi
235/40R18 91YRim 18x9 ET24 5x12038 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). ET24 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 1998
6
Generation
E39 sold in 2 market versions
Other years
All years (1988–2004)

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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