2021 Audi A4 Custom Alloy Wheels & Aftermarket Rims Guide
Showing compatible wheels for the 2021 Audi A4 (45 TFSi Quattro) matching 5x112 bolt pattern, 17, 18, and 19 inch diameters, and 7"–8.5" widths from KMC, Weld, American Racing Vintage, SVF02. Filter by rim size, width, or finish and build a complete wheel & tire package.
- Diameter
- 17, 18, 19
- Width
- 7, 8, 8.5, 7.5
- Bolt pattern
- 5x112
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2021 Audi A4 Wheel Fitment Specs: 17"–19" Rim Sizes, 7"–8.5" Widths & 5×112 PCD
Every aftermarket wheel shown above is pre-filtered for the 2021 Audi A4 (B9 Facelift). By matching your 2021 Audi A4 lug pattern (5×112), compatible rim diameters (17, 18, and 19 inch), and 7", 7.5", 8", 8.5" widths against inventory from KMC, Weld, American Racing Vintage, SVF02, Lexani, Savini, you can choose custom rims with confidence or build a complete 2021 Audi A4 wheel and tire package.
| Specification | Verified Fitment Details |
|---|---|
| Vehicle & Year | 2021 Audi A4 (B9 Facelift) |
| Trims Covered | 45 TFSi Quattro |
| Bolt Pattern (PCD) | 5×112 |
| Supported Diameters | 17", 18", 19" |
| Supported Widths | 7", 7.5", 8", 8.5" |
| Center Bore | 66.5 mm |
| Offset (ET) Range | ET38–ET42 |
| Verified Tire Sizes | 225/50R17 94H, 245/40ZR18 93Y, 245/35ZR19 93Y, 225/50ZR17 94Y, 245/40R18 97H |
| Compatible Brands | KMC, Weld, American Racing Vintage, SVF02, Lexani, Savini |
2021 Audi A4 Rim Sizes & Wheel Construction Guide
Popular wheel fitments include 17 inch wheels for 2021 Audi A4, 18 inch wheels for 2021 Audi A4, 19 inch wheels for 2021 Audi A4 matched to 7"–8.5" widths and 5×112 bolt patterns. You can safely run cast alloy, flow-formed, or forged custom wheels from brands such as KMC, Weld, American Racing Vintage, SVF02, Lexani, Savini whenever bolt pattern, center bore, offset, and load rating align. When stepping up in diameter on AWD drivetrains, keep overall tire rolling diameter matched front-to-rear.
2021 Audi A4 Wheel & Fitment FAQs
What is the exact wheel bolt pattern, hub bore, and lug specification for the 2021 Audi A4?
The 2021 Audi A4 is engineered with a 5×112 bolt pattern and a 66.5 mm center bore and accommodates wheel diameters of 17"–19" with rim widths of 7"–8.5". Installing hub-centric wheels guarantees zero highway vibrations.
Do different 2021 Audi A4 trims share the same wheel size and brake clearance?
Across 2021 Audi A4 trims (45 TFSi Quattro), compatible wheels span 17"–19" in diameter and 7"–8.5" wide with offsets around ET38–ET42 (5×112 bolt pattern). Higher trims equipped with upgraded sport brakes require larger wheel diameters to clear the calipers.
What precautions are needed when changing wheel sizes on an AWD 2021 Audi A4?
On the AWD 2021 Audi A4, all four tires must maintain matching overall rolling diameters within 1% across 17"–19" wheel sizes (5×112 PCD) to prevent strain on the center differential.
What factory and plus-sized tire sizes fit the 2021 Audi A4?
Recorded compatible tire sizes for the 2021 Audi A4 include 225/50R17 94H, 245/40ZR18 93Y, 245/35ZR19 93Y, 225/50ZR17 94Y, 245/40R18 97H on 17"–19" wheels. When building a package, our fitment engine confirms exact tire aspect ratios for your selected rim width.