# Buick Regal Sportback tire sizes

> Pick a trim to see its compatible tire sizes.

<https://tkr.az/en/cars/buick/regal-sportback>

## Trims

- Regal Sportback: 2018–2020 · 6 trims

## Regal Sportback tire sizes

### Avenir

| Fitment | Size | Years |
| --- | --- | --- |
| — | [245/40R19](https://tkr.az/en/tires/245-40-r19?vehicle=buick%2Fregal-sportback) | 2019–2020 |
| — | [245/45R18](https://tkr.az/en/tires/245-45-r18?vehicle=buick%2Fregal-sportback) | 2019–2020 |
| — | [225/55R17](https://tkr.az/en/tires/225-55-r17?vehicle=buick%2Fregal-sportback) | 2019–2020 |

### Base

| Fitment | Size | Years |
| --- | --- | --- |
| — | [225/55R17](https://tkr.az/en/tires/225-55-r17?vehicle=buick%2Fregal-sportback) | 2018–2020 |

### Essence

| Fitment | Size | Years |
| --- | --- | --- |
| — | [245/45R18](https://tkr.az/en/tires/245-45-r18?vehicle=buick%2Fregal-sportback) | 2018–2020 |
| — | [225/55R17](https://tkr.az/en/tires/225-55-r17?vehicle=buick%2Fregal-sportback) | 2018–2019 |

### GS

| Fitment | Size | Years |
| --- | --- | --- |
| — | [245/40R19](https://tkr.az/en/tires/245-40-r19?vehicle=buick%2Fregal-sportback) | 2018–2020 |
| — | [245/45R18](https://tkr.az/en/tires/245-45-r18?vehicle=buick%2Fregal-sportback) | 2018–2019 |

### Preferred

| Fitment | Size | Years |
| --- | --- | --- |
| — | [245/45R18](https://tkr.az/en/tires/245-45-r18?vehicle=buick%2Fregal-sportback) | 2018–2020 |
| — | [225/55R17](https://tkr.az/en/tires/225-55-r17?vehicle=buick%2Fregal-sportback) | 2018–2020 |

### Preferred II

| Fitment | Size | Years |
| --- | --- | --- |
| — | [245/45R18](https://tkr.az/en/tires/245-45-r18?vehicle=buick%2Fregal-sportback) | 2018–2019 |
| — | [225/55R17](https://tkr.az/en/tires/225-55-r17?vehicle=buick%2Fregal-sportback) | 2018–2019 |

Sizes for the Buick Regal Sportback trim are based on fitment data. Check the exact size on your car's current tires or in the owner's manual.

## By model year

[2020](https://tkr.az/en/cars/buick/regal-sportback/2020) · [2019](https://tkr.az/en/cars/buick/regal-sportback/2019) · [2018](https://tkr.az/en/cars/buick/regal-sportback/2018)