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2018 BMW 8 Series Tire Size & Wheel Specs

The 2018 BMW 8 Series OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.

2018 BMW 8 Series Engine & Trim Levels

840iM850i xDrive
Bolt Pattern5x112
Center Bore66.6
Stud SizeM 14x1.25
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OEM Wheel & Tire Specs

Engine & TrimTire SizeRim SizeOffset (ET)
840i
Rear: 275/40R18
18x8.0JET26
M850i xDrive
Rear: 275/30R20
20x8.0JET26

Frequently Asked Questions

What tire size does the 2018 BMW 8 Series 840i use?

The 2018 BMW 8 Series 840i uses 245/45R18 tires as standard equipment.

What tire size does the 2018 BMW 8 Series M850i xDrive use?

The 2018 BMW 8 Series M850i xDrive uses 245/35R20 tires as standard equipment.

What is the bolt pattern of the 2018 BMW 8 Series?

The 2018 BMW 8 Series has a 5x112 bolt pattern with a center bore of 66.6mm.

What is the wheel offset of the 2018 BMW 8 Series?

The 2018 BMW 8 Series has a wheel offset of ETET26.