2021 Alfa Romeo Giulia Bolt Pattern & Tire Size
The 2021 Alfa Romeo Giulia OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.
The 2021 Alfa Romeo Giulia has a 5x110 bolt pattern, an OEM tire size of 225/50R17, and a 65.1mm center bore.
Other years of the Alfa Romeo Giulia
2021 Alfa Romeo Giulia Engine & Trim Levels
Detailed tire and wheel breakdown for the 2021 Alfa Romeo Giulia
Tire geometry â 225/50R17
The 225/50R17 fitted to the 2021 Alfa Romeo Giulia has a section width of 225mm and an aspect ratio of 50%, mounted on a 17-inch rim. That gives a sidewall height of 112.5mm (4.43") and an overall outside diameter of 656.8mm (25.86"). At highway speed this tire completes roughly 485 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2021 Alfa Romeo Giulia while keeping the speedometer accurate, target a 235/42R18 (plus-one). For a softer ride or winter setup, a 215/58R16 (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 2021 Alfa Romeo Giulia uses a 5x110 bolt pattern with a 65.1mm hub bore. Safe rim width range for the OEM tire is 7.0J â 8.0J, and offsets in the ET28 â ET38 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2021 Alfa Romeo Giulia is printed on the driver-side door jamb sticker â 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%.
OEM Wheel & Tire Specs
| Engine & Trim | Tire Size | Rim Size | Offset (ET) | |
|---|---|---|---|---|
| 2.2 JTDM (150/180/210hp) | 17x7.5J | ET33 | ||
| 2.0T (200hp / 280hp Veloce) | Rear: 255/40R18 | 18x8.0J | ET33 | |
| 2.9 V6 Bi-Turbo Quadrifoglio | Rear: 285/30R19 | 19x8.5J | ET34 |
Frequently Asked Questions
What tire size does the 2021 Alfa Romeo Giulia 2.2 JTDM (150/180/210hp) use?
The 2021 Alfa Romeo Giulia 2.2 JTDM (150/180/210hp) uses 225/50R17 tires as standard equipment.
What tire size does the 2021 Alfa Romeo Giulia 2.0T (200hp / 280hp Veloce) use?
The 2021 Alfa Romeo Giulia 2.0T (200hp / 280hp Veloce) uses 225/45R18 tires as standard equipment.
What tire size does the 2021 Alfa Romeo Giulia 2.9 V6 Bi-Turbo Quadrifoglio use?
The 2021 Alfa Romeo Giulia 2.9 V6 Bi-Turbo Quadrifoglio uses 245/35R19 tires as standard equipment.
What is the bolt pattern of the 2021 Alfa Romeo Giulia?
The 2021 Alfa Romeo Giulia has a 5x110 bolt pattern with a center bore of 65.1mm.
What is the wheel offset of the 2021 Alfa Romeo Giulia?
The 2021 Alfa Romeo Giulia has a wheel offset of ET33.
Other Vehicles with 5x110 Bolt Pattern
The following vehicles share the same 5x110 bolt pattern as the 2021 Alfa Romeo Giulia, making wheel interchangeability possible (verify offset and center bore before swapping).