2026 Chevrolet Silverado — 1500 RST
The 2026 Chevrolet Silverado 1500 RST shipped with 3 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
265/65R18
| Section width | 265 mm |
|---|---|
| Aspect ratio (sidewall height) | 65% (172.3 mm) |
| Rim diameter | 18" |
| Overall tire diameter | ~31.6" |
| Revolutions per mile | ~639 |
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275/60R20
| Section width | 275 mm |
|---|---|
| Aspect ratio (sidewall height) | 60% (165 mm) |
| Rim diameter | 20" |
| Overall tire diameter | ~33" |
| Revolutions per mile | ~611 |
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275/50R22
| Section width | 275 mm |
|---|---|
| Aspect ratio (sidewall height) | 50% (137.5 mm) |
| Rim diameter | 22" |
| Overall tire diameter | ~32.8" |
| Revolutions per mile | ~614 |
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What this size means for your Chevrolet Silverado
On the 2026 Chevrolet Silverado 1500 RST, the factory 265/65R18 measures about 31.6″ in overall diameter with a 172.3 mm (6.8″) sidewall, and completes roughly 639 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.
The 265/65R18 and 275/60R20 differ in both width and overall diameter (1.4″, 4.4%), which usually means a staggered front/rear setup — the two sizes are not interchangeable side to side, so match each to its correct axle.
Other 2026 Chevrolet Silverado trims
- 1500 Custom 275/60R20
- 1500 Custom Trail Boss 275/65R18 / 265/60R20 / 275/60R20
- 1500 High Country 275/60R20 / 275/50R22
- 1500 LT 255/70R17 / 265/70R17 / 265/65R18 / 275/60R20 / 275/50R22
- 1500 LT Trail Boss 275/65R18 / 265/60R20 / 275/60R20
- 1500 LTZ 275/60R20 / 275/50R22
- 1500 WT 255/70R17 / 265/70R17 / 275/65R18
- 1500 ZR2 275/70R18
- 2500 HD Custom 275/65R20
- 2500 HD High Country 275/65R20 / 265/60R22
- 2500 HD LT 245/75R17 / 265/70R17 / 275/70R18 / 275/65R20 / 265/60R22
- 2500 HD LTZ 275/70R18 / 275/65R20 / 265/60R22
- 2500 HD WT 245/75R17 / 265/70R17 / 275/70R18
- 2500 HD ZR2 305/70R18
- 3500 HD 275/70R18 / 275/65R20
- 3500 HD Dually 235/80R17 / 235/80R18
Chevrolet Silverado tire sizes by year
- 2025 Chevrolet Silverado 275/60R20
- 2024 Chevrolet Silverado 275/60R20
- 2023 Chevrolet Silverado 275/60R20
- 2022 Chevrolet Silverado 275/60R20
- 2021 Chevrolet Silverado 275/60R20 / 275/50R22
- 2020 Chevrolet Silverado 255/70R17 / 265/70R17 / 265/65R18 / 275/60R20 / 275/50R22
- 2019 Chevrolet Silverado 255/70R17 / 265/70R17 / 265/65R18 / 275/60R20 / 275/50R22
- 2018 Chevrolet Silverado 255/70R17 / 265/70R17 / 265/65R18 / 275/55R20 / 285/45R22
- 2017 Chevrolet Silverado 255/70R17 / 265/70R17 / 265/65R18 / 275/55R20
- 2016 Chevrolet Silverado 255/70R17 / 265/70R17 / 265/65R18 / 275/55R20
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.