255/55R20 is a tire size notation. It describes geometry but does not establish the load, speed, tire class, wheel approval or fit of a particular replacement.
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How to read this size
- Nominal width: 255 mm
- Aspect ratio: 55 %
- Wheel diameter: 20.0 in
- Calculated nominal diameter: 788.5 mm
Calculated nominal diameter is an arithmetic estimate from the size code; actual product measurements vary.
Before ordering tires
Read the driver-door tire placard. Match the installed wheel, axle, tire class, load index, speed rating and any OE marking. The size alone cannot approve a replacement SKU. Tire-sidewall maximum pressure is not your vehicle’s cold inflation pressure.
Vehicles recorded with this size
| Model year and vehicle | Trim / option | Axle | Service |
|---|---|---|---|
| 2025 Chevrolet Colorado | Z71 | unspecified | Not documented |
| 2025 Chevrolet Traverse | LT | front_rear | Not documented |
| 2025 Ford Explorer | Active | unspecified | Not documented |
| 2025 Ford Explorer | Platinum | unspecified | Not documented |
| 2025 Ford Explorer | ST-Line | unspecified | Not documented |
| 2025 GMC Acadia | Denali | unspecified | Not documented |
| 2025 GMC Acadia | Elevation | unspecified | Not documented |
| 2025 GMC Acadia | Elevation with Premium Package | unspecified | Not documented |
| 2025 Land Rover Discovery | S | unspecified | Not documented |
| 2025 Lincoln Aviator | Premiere AWD | front_rear | Not documented |
| 2025 Lincoln Aviator | Premiere RWD | front_rear | Not documented |
| 2025 Lincoln Nautilus | Premiere | unspecified | Not documented |
| 2025 Lincoln Nautilus | Premiere Hybrid | unspecified | Not documented |
| 2025 Lincoln Nautilus | Premiere Hybrid with Jet Appearance Package | unspecified | Not documented |
| 2025 Lincoln Nautilus | Premiere with Jet Appearance Package | unspecified | Not documented |
| 2025 Nissan Murano | SL | unspecified | Not documented |
| 2025 Nissan Murano | SV | unspecified | Not documented |
| 2010 Saturn Outlook | XR | unspecified | Not documented |
| 2025 Toyota Grand Highlander | Hybrid Limited | unspecified | Not documented |
| 2025 Toyota Grand Highlander | Hybrid MAX Limited | unspecified | Not documented |
| 2025 Toyota Grand Highlander | Hybrid MAX Platinum | unspecified | Not documented |
| 2025 Toyota Grand Highlander | Hybrid Nightshade | unspecified | Not documented |
| 2025 Toyota Grand Highlander | Limited | unspecified | Not documented |
| 2025 Toyota Grand Highlander | Platinum | unspecified | Not documented |
Exact product variants in research
No source-backed rows are available for this exact selection.
Explore 255/55R20 tires on Amazon
Amazon search results may mix tire classes, load and speed ratings, OE markings and package quantities. Match the full requirement on your actual vehicle before ordering.
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Search 255/55R20 tires on AmazonCompare sizes with the tire size calculator. It is an educational geometry comparison, not a fitment ruling.
Sources and scope
- Goodyear — 2025 Ford Explorer: version/option and tire size (checked 2026-11-01)
- Goodyear US — Find 2025 Chevrolet Colorado Tires (checked 2026-11-01)
- Goodyear — 2025 Lincoln Aviator tire size by trim (checked 2026-11-01)
- Goodyear — 2025 Chevrolet Traverse tire size by trim (checked 2026-11-01)
- Goodyear — Find 2025 GMC Acadia Tires | Goodyear (checked 2026-11-01)
- Goodyear — Find 2025 Toyota Grand Highlander Tires | Goodyear (checked 2026-11-01)
- Goodyear — Find 2025 Nissan Murano Tires | Goodyear (checked 2026-11-01)
- Goodyear — Find 2025 Lincoln Nautilus Tires | Goodyear (checked 2026-11-01)
- Goodyear — Find 2025 Land Rover Discovery Tires | Goodyear (checked 2026-11-01)
- Goodyear — Find 2010 Saturn Outlook Tires | Goodyear (checked 2026-11-01)
Research checked November 2, 2026. A source-observed size is not final product fitment. Confirm the actual vehicle and current manufacturer guidance.