2026 Chevrolet Silverado EV — Custom
The 2026 Chevrolet Silverado EV Custom shipped with 2 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.
265/70R18
| Section width | 265 mm |
|---|---|
| Aspect ratio (sidewall height) | 70% (185.5 mm) |
| Rim diameter | 18" |
| Overall tire diameter | ~32.6" |
| Revolutions per mile | ~619 |
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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 EV
On the 2026 Chevrolet Silverado EV Custom, the factory 265/70R18 measures about 32.6″ in overall diameter with a 185.5 mm (7.3″) sidewall, and completes roughly 619 revolutions per mile. Its 70-series aspect ratio gives a tall sidewall of the kind used on trucks, SUVs, and older passenger cars, built for cushioning and load. In tire terms it is a passenger (P-metric / Euro-metric) size.
The 265/70R18 and 275/50R22 roll within 0.2″ (0.6%) of each other in overall diameter, so they are interchangeable from a speedometer standpoint — the second size is an optional wheel package rather than a different rolling size.
Other 2026 Chevrolet Silverado EV trims
- LT 265/70R18 / 275/50R22
- Trail Boss 285/75R18
Chevrolet Silverado EV tire sizes by year
- 2025 Chevrolet Silverado EV 265/70R18 / 275/50R22
- 2024 Chevrolet Silverado EV 275/50R24
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.