Tire fitment
The 2025 Chevrolet Silverado 1500 base tire size is 255/70R17 — 255 mm wide with a 70% aspect ratio on 17″ rims. 4 OEM sizes are available across trims.
2025 Chevrolet Silverado 1500
255/70R1731.1″ overall diameter · 178.5 mm sidewall · ~649 rev/mi
| Trim | Tire size | Rim | Diameter | vs Base |
|---|---|---|---|---|
| WT/Custom ★ | 255/70R17 | 8×17″ | 31.1″ (788.8 mm) | — |
| LT/RST | 275/65R18 | 8.5×18″ | 32.1″ (814.7 mm) | +3.28% |
| LTZ/High Country | 275/60R20 | 8.5×20″ | 33″ (838 mm) | +6.24% |
| High Country | 275/50R22 | 9×22″ | 32.8″ (833.8 mm) | +5.7% |
The 2025 Chevrolet Silverado 1500 ships with 255/70R17 tires on the base trim — that's an overall diameter of 31.1″. The 255 mm width and 70% sidewall ratio give you 178.5 mm of sidewall cushion between the rim and the road.
Match the load index and speed rating from your door-jamb placard — not just the size. If you're switching sizes, keep the overall diameter within ~3% to avoid speedometer error and potential ABS/traction-control issues.
Factory fitment for the 2025 Chevrolet Silverado 1500; verify against your door-jamb placard or owner's manual.
The base 2025 Chevrolet Silverado 1500 uses 255/70R17 tires — 255 mm wide, 70% aspect ratio, on 17-inch rims. The overall diameter is 31.1″ (788.8 mm). Higher trims use different sizes — see the table above. Confirm against your door-jamb placard.
Yes, within limits. Keep the overall diameter within about 3% of 31.1″ to avoid speedometer error and clearance issues. A wider tire may improve grip, but match the load and speed ratings your Silverado 1500 requires.
255/70R17 tires have an overall diameter of 31.1″ (788.8 mm), with a 178.5 mm sidewall height. That's about 649 revolutions per mile.
The 2025 Chevrolet Silverado 1500 tire sizes shown are OEM factory fitments. Confirm your exact tire size, load rating, and speed rating against the door-jamb placard or owner's manual before buying tires.