Bolt Pattern4x100
Center Bore60.1
Stud SizeM 12x1.5
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Detailed tire and wheel breakdown for the 2020 Smart Fortwo

Tire geometry — 185/50R16

The 185/50R16 fitted to the 2020 Smart Fortwo has a section width of 185mm and an aspect ratio of 50%, mounted on a 16-inch rim. That gives a sidewall height of 92.5mm (3.64") and an overall outside diameter of 591.4mm (23.28"). At highway speed this tire completes roughly 538 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.

Plus-sizing window

If you want to upsize wheels on the 2020 Smart Fortwo while keeping the speedometer accurate, target a 195/41R17 (plus-one). For a softer ride or winter setup, a 175/60R15 (minus-one) keeps the overall diameter within Âą3% of stock, which is the industry tolerance for ABS and stability control to stay calibrated.

Wheel fitment specs

The 2020 Smart Fortwo uses a 4x100 bolt pattern with a 60.1mm hub bore. Safe rim width range for the OEM tire is 5.5J – 6.5J, and offsets in the ET39 – ET49 window will clear suspension and fender without rubbing on most setups.

Staggered setup notes

The 2020 Smart Fortwo ships staggered: 185/50R16 up front and 205/45R16 on the rear. That is a 205mm vs 185mm width difference — do not rotate front-to-rear, and replace tires in axle pairs to keep ABS and traction control balanced.

Tire pressure guidance

Manufacturer-recommended cold tire pressure for the 2020 Smart Fortwo is printed on the driver-side door jamb sticker — always defer to that value, not to the maximum pressure printed on the tire sidewall. Check pressure monthly and before long trips; under-inflation by 20% can reduce tread life by 25%.

Fitment Specifications

Engine & TrimTire SizeRim SizeOffset (ET)
EQ185/50R16
Rear: 205/45R16
16" x 6.0ET44

Frequently Asked Questions

What tire size does the 2020 Smart Fortwo EQ use?

The 2020 Smart Fortwo EQ uses 185/50R16 tires as standard equipment.

What is the bolt pattern of the 2020 Smart Fortwo EQ?

The 2020 Smart Fortwo EQ has a 4x100 bolt pattern with a center bore of 60.1mm.

What is the wheel offset of the 2020 Smart Fortwo EQ?

The 2020 Smart Fortwo EQ has a wheel offset of ETET44.