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Continental
Continental ProContact GX 285/40R20 108H - 15578970000
Continental ProContact GX 285/40R20 108H - 15578970000
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Looking for a 285/40R20 all season tire? The Continental ProContact GX is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 285/40R20 means
In the size 285/40R20, 285 is the section width in millimeters (11.22 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 114.0 mm (4.49 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 28.98 inches, turning roughly 696 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 108 — a maximum load of 2,205 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.
Specifications
| Size | 285/40R20 |
| Tire Type | All Season |
| Service Description | 108H |
| Load Index | 108 |
| Speed Rating | H |
| Load Range | XL |
| Section Width (mm) | 285 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 28.98 |
| Tread Depth (/32") | 9 |
| Treadwear | 500 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 500AA |
| Warranty | 55K |
Frequently asked questions
What kind of tire is the Continental ProContact GX?
The Continental ProContact GX in 285/40R20 is a all season tire.
What are the treadwear and warranty ratings on the Continental ProContact GX?
This tire carries a treadwear grade of 500, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 55K.
What does 108H mean on the Continental ProContact GX?
108H breaks down as load index 108 — rated for 2,205 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.
Keep shopping
Browse Continental tires, see every Continental ProContact GX size, or view all tires at ThreePiece.us.
- BRAND:
- Continental
- Model:
- ProContact GX
- Size:
- 285/40R20
- Aspect Ratio:
- 40
- Load Index:
- 108
- Load Range:
- XL
- Section Width:
- 285
- Service Description:
- 108H
- Speed Index:
- H
- Temperature:
- A
- Tire Rim Diameter:
- 28.98
- Tire Type:
- All Season
- Traction:
- A
- Tread Wear:
- 500
- Tread Depth:
- 9
- UQTG:
- 500AA
- Warranty:
- 55K
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