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Cooper
Cooper Discoverer A/T3 LT265/60R20/10 121/118R - 90000019984
Cooper Discoverer A/T3 LT265/60R20/10 121/118R - 90000019984
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The Cooper Discoverer A/T3 in 265/60R20 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 265/60R20 means
In the size 265/60R20, 265 is the section width in millimeters (10.43 in), 60 is the aspect ratio — the sidewall stands 60% as tall as the tire is wide, or 159.0 mm (6.26 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 32.52 inches, turning roughly 620 revolutions per mile. Overall diameter is what matters for speedometer accuracy and clearance when you change sizes, so compare it — not just the width — against your current tire.
The service description on this tire decodes to a load index of 121 — a maximum load of 3,197 lbs per tire, or 118 (2,910 lbs) per tire when mounted as duals. The speed symbol R corresponds to a maximum sustained speed of 106 mph.
Specifications
| Size | LT265/60R20/10 |
| Tire Type | All Season |
| Service Description | 121/118R |
| Load Index | 121/118 |
| Speed Rating | R |
| Load Range | 10 |
| Section Width (mm) | 265 |
| Aspect Ratio | 60 |
| Overall Diameter (in) | 32.52 |
| Tread Depth (/32") | 16 |
| Warranty | 55K |
Frequently asked questions
What does 121/118R mean on the Cooper Discoverer A/T3?
121/118R breaks down as load index 121 — rated for 3,197 lbs per tire (118, or 2,910 lbs, in dual fitment) — with an R speed rating, good for a maximum sustained 106 mph.
What kind of tire is the Cooper Discoverer A/T3?
The Cooper Discoverer A/T3 in 265/60R20 is a all season tire.
What warranty does the Cooper Discoverer A/T3 carry?
The manufacturer's warranty on this tire is 55K.
Keep shopping
Shop all 265/60R20 tires, browse Cooper tires, or view all tires at ThreePiece.us.
- BRAND:
- Cooper
- Model:
- Discoverer A/T3
- Size:
- LT265/60R20/10
- Aspect Ratio:
- 60
- Load Index:
- 121/118
- Load Range:
- 10
- Section Width:
- 265
- Service Description:
- 121/118R
- Speed Index:
- R
- Tire Rim Diameter:
- 32.52
- Tire Type:
- All Season
- Tread Depth:
- 16
- Warranty:
- 55K
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