2010 Alfa Romeo Giulietta Bolt Pattern & Tire Size
The 2010 Alfa Romeo Giulietta OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.
The 2010 Alfa Romeo Giulietta has a 5x110 bolt pattern, an OEM tire size of 225/45R17, and a 65.1mm center bore.
Other years of the Alfa Romeo Giulietta
2010 Alfa Romeo Giulietta Engine & Trim Levels
Detailed tire and wheel breakdown for the 2010 Alfa Romeo Giulietta
Tire geometry â 225/45R17
The 225/45R17 fitted to the 2010 Alfa Romeo Giulietta has a section width of 225mm and an aspect ratio of 45%, mounted on a 17-inch rim. That gives a sidewall height of 101.3mm (3.99") and an overall outside diameter of 634.3mm (24.97"). At highway speed this tire completes roughly 502 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2010 Alfa Romeo Giulietta while keeping the speedometer accurate, target a 235/38R18 (plus-one). For a softer ride or winter setup, a 215/53R16 (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 2010 Alfa Romeo Giulietta 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 ET36 â ET46 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2010 Alfa Romeo Giulietta 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) | |
|---|---|---|---|---|
| 1.4T / 1.6 JTDM Distinctive | 17x7.5J | ET41 | ||
| 1.75TBi Quadrifoglio Verde | 18x7.5J | ET41 |
Frequently Asked Questions
What tire size does the 2010 Alfa Romeo Giulietta 1.4T / 1.6 JTDM Distinctive use?
The 2010 Alfa Romeo Giulietta 1.4T / 1.6 JTDM Distinctive uses 225/45R17 tires as standard equipment.
What tire size does the 2010 Alfa Romeo Giulietta 1.75TBi Quadrifoglio Verde use?
The 2010 Alfa Romeo Giulietta 1.75TBi Quadrifoglio Verde uses 225/40R18 tires as standard equipment.
What is the bolt pattern of the 2010 Alfa Romeo Giulietta?
The 2010 Alfa Romeo Giulietta has a 5x110 bolt pattern with a center bore of 65.1mm.
What is the wheel offset of the 2010 Alfa Romeo Giulietta?
The 2010 Alfa Romeo Giulietta has a wheel offset of ET41.
Other Vehicles with 5x110 Bolt Pattern
The following vehicles share the same 5x110 bolt pattern as the 2010 Alfa Romeo Giulietta, making wheel interchangeability possible (verify offset and center bore before swapping).