Tire fitment
The 2025 Chevrolet Colorado base tire size is 255/65R17 — 255 mm wide with a 65% aspect ratio on 17″ rims. 3 OEM sizes are available across trims.
2025 Chevrolet Colorado
255/65R1730.1″ overall diameter · 165.8 mm sidewall · ~671 rev/mi
| Trim | Tire size | Rim | Diameter | vs Base |
|---|---|---|---|---|
| WT/LT ★ | 255/65R17 | 7.5×17″ | 30.1″ (763.3 mm) | — |
| Z71/Trail Boss | 265/65R18 | 8×18″ | 31.6″ (801.7 mm) | +5.03% |
| ZR2 | 285/70R17 | 8×17″ | 32.7″ (830.8 mm) | +8.84% |
The 2025 Chevrolet Colorado ships with 255/65R17 tires on the base trim — that's an overall diameter of 30.1″. The 255 mm width and 65% sidewall ratio give you 165.8 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 Colorado; verify against your door-jamb placard or owner's manual.
The base 2025 Chevrolet Colorado uses 255/65R17 tires — 255 mm wide, 65% aspect ratio, on 17-inch rims. The overall diameter is 30.1″ (763.3 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 30.1″ to avoid speedometer error and clearance issues. A wider tire may improve grip, but match the load and speed ratings your Colorado requires.
255/65R17 tires have an overall diameter of 30.1″ (763.3 mm), with a 165.8 mm sidewall height. That's about 671 revolutions per mile.
The 2025 Chevrolet Colorado 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.