2021 Chevrolet Traverse — L
The 2021 Chevrolet Traverse L came from the factory equipped with 255/65R18 tires. If your vehicle has since been fitted with aftermarket or upsized wheels, your actual tire size may no longer match this factory spec — always confirm against your door placard before buying.
255/65R18
| Section width | 255 mm |
|---|---|
| Aspect ratio (sidewall height) | 65% (165.8 mm) |
| Rim diameter | 18" |
| Overall tire diameter | ~31.1" |
| Revolutions per mile | ~650 |
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What this size means for your Chevrolet Traverse
On the 2021 Chevrolet Traverse L, the factory 255/65R18 measures about 31.1″ in overall diameter with a 165.8 mm (6.5″) sidewall, and completes roughly 650 revolutions per mile. Its 65-series aspect ratio gives a taller, comfort-biased sidewall that favors ride quality and shrugs off rough pavement. In tire terms it is a passenger (P-metric / Euro-metric) size.
Other 2021 Chevrolet Traverse trims
- High Country 255/55R20
- LS 255/65R18 / 255/55R20
- LT 255/65R18 / 255/55R20
- Premier 255/55R20
- RS 255/55R20
Chevrolet Traverse tire sizes by year
- 2026 Chevrolet Traverse 275/45R22
- 2025 Chevrolet Traverse 275/45R22
- 2024 Chevrolet Traverse 255/65R18 / 255/55R20
- 2023 Chevrolet Traverse 255/55R20
- 2022 Chevrolet Traverse 255/55R20
- 2020 Chevrolet Traverse 255/55R20
- 2019 Chevrolet Traverse 255/55R20
- 2018 Chevrolet Traverse 255/55R20
- 2017 Chevrolet Traverse 245/70R17 / 255/65R18
- 2016 Chevrolet Traverse 245/70R17
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.