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AMP
AMP Terrain Pro A/T LT285/60R20
AMP Terrain Pro A/T LT285/60R20
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Looking for a 285/60R20 all terrain tire? The AMP Terrain Pro A/T is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 285/60R20 means
In the size 285/60R20, 285 is the section width in millimeters (11.22 in), 60 is the aspect ratio — the sidewall stands 60% as tall as the tire is wide, or 171.0 mm (6.73 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 33.46 inches, turning roughly 603 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 125 — a maximum load of 3,638 lbs per tire, or 122 (3,307 lbs) per tire when mounted as duals. The speed symbol S corresponds to a maximum sustained speed of 112 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | LT285/60R20 |
| Tire Type | All Terrain |
| Service Description | 125/122S |
| Load Index | 125/122 |
| Speed Rating | S |
| Load Range | E |
| Section Width (mm) | 285 |
| Aspect Ratio | 60 |
| Overall Diameter (in) | 33.46 |
| Tread Depth (/32") | 15.1 |
| Traction Grade | A |
| Warranty | 60K |
Frequently asked questions
What kind of tire is the AMP Terrain Pro A/T?
The AMP Terrain Pro A/T in 285/60R20 is a all terrain tire.
What warranty does the AMP Terrain Pro A/T carry?
The manufacturer's warranty on this tire is 60K.
What does 125/122S mean on the AMP Terrain Pro A/T?
125/122S breaks down as load index 125 — rated for 3,638 lbs per tire (122, or 3,307 lbs, in dual fitment) — with an S speed rating, good for a maximum sustained 112 mph.
Keep shopping
Shop all 285/60R20 tires, see every AMP Terrain Pro A/T size, explore all terrain tires, or view all tires at ThreePiece.us.
- BRAND:
- AMP
- Model:
- Terrain Pro A/T
- Size:
- LT285/60R20
- Aspect Ratio:
- 60
- Load Index:
- 125/122
- Load Range:
- E
- Section Width:
- 285
- Service Description:
- 125/122S
- Speed Index:
- S
- Inflation Pressure:
- 80 PSI
- Tire Rim Diameter:
- 33.46
- Tire Type:
- All Terrain
- Traction:
- A
- Tread Wear:
- N/A
- Tread Depth:
- 15.1
- Tread Construction:
- 2P+2S+1N
- Warranty:
- 60K
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