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Continental
Continental CON ContiSportContact 5 255/40R18
Continental CON ContiSportContact 5 255/40R18
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The Continental ContiSportContact 5 in 255/40R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 255/40R18 means
In the size 255/40R18, 255 is the section width in millimeters (10.04 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 102.0 mm (4.02 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 26.03 inches, turning roughly 775 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 95 — a maximum load of 1,521 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 255/40R18 |
| Tire Type | High Performance |
| Service Description | 95Y |
| Load Index | 95 |
| Speed Rating | Y |
| Load Range | SL |
| Section Width (mm) | 255 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 26 |
| Tread Depth (/32") | 9 |
| Treadwear | 280 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 280AAA |
Frequently asked questions
What does 95Y mean on the Continental ContiSportContact 5?
95Y breaks down as load index 95 — rated for 1,521 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
What kind of tire is the Continental ContiSportContact 5?
The Continental ContiSportContact 5 in 255/40R18 is a high performance tire.
What are the treadwear and warranty ratings on the Continental ContiSportContact 5?
This tire carries a treadwear grade of 280, traction grade AA, temperature grade A under UTQG.
Keep shopping
Shop all 255/40R18 tires, see every Continental ContiSportContact 5 size, or view all tires at ThreePiece.us.
- BRAND:
- Continental
- Model:
- CON ContiSportContact 5
- Size:
- 255/40R18
- Aspect Ratio:
- 40
- Load Index:
- 95
- Load Range:
- SL
- Section Width:
- 255
- Service Description:
- 95Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 26
- Tire Type:
- High Performance
- Traction:
- AA
- Tread Wear:
- 280
- Tread Depth:
- 9
- UQTG:
- 280AAA
- Warranty:
- N/A
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