2021 Audi A1 Bolt Pattern & Tire Size
The 2021 Audi A1 OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.
The 2021 Audi A1 has a 5x100 bolt pattern, an OEM tire size of 215/45R17, and a 57.1mm center bore.
Other years of the Audi A1
2021 Audi A1 Engine & Trim Levels
Detailed tire and wheel breakdown for the 2021 Audi A1
Tire geometry â 215/45R17
The 215/45R17 fitted to the 2021 Audi A1 has a section width of 215mm and an aspect ratio of 45%, mounted on a 17-inch rim. That gives a sidewall height of 96.8mm (3.81") and an overall outside diameter of 625.3mm (24.62"). At highway speed this tire completes roughly 509 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 Audi A1 while keeping the speedometer accurate, target a 225/37R18 (plus-one). For a softer ride or winter setup, a 205/53R16 (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 2021 Audi A1 uses a 5x100 bolt pattern with a 57.1mm hub bore. Safe rim width range for the OEM tire is 7.0J â 8.0J, and offsets in the ET41 â ET51 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2021 Audi A1 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) | |
|---|---|---|---|---|
| 35 TFSI Sport | 17x7.5J | ET46 |
Frequently Asked Questions
What tire size does the 2021 Audi A1 35 TFSI Sport use?
The 2021 Audi A1 35 TFSI Sport uses 215/45R17 tires as standard equipment.
What is the bolt pattern of the 2021 Audi A1?
The 2021 Audi A1 has a 5x100 bolt pattern with a center bore of 57.1mm.
What is the wheel offset of the 2021 Audi A1?
The 2021 Audi A1 has a wheel offset of ET46.
Other Vehicles with 5x100 Bolt Pattern
The following vehicles share the same 5x100 bolt pattern as the 2021 Audi A1, making wheel interchangeability possible (verify offset and center bore before swapping).