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Continental
Continental ContiSportContact 5 285/40R21XL 109Y - 03568650000
Continental ContiSportContact 5 285/40R21XL 109Y - 03568650000
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Shop the Continental ContiSportContact 5 285/40R21 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 285/40R21 means
In the size 285/40R21, 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 21 is the wheel diameter in inches. That works out to an overall diameter of about 29.98 inches, turning roughly 673 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 109 — a maximum load of 2,271 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 285/40R21XL |
| Tire Type | Summer |
| Service Description | 109Y |
| Load Index | 109 |
| Speed Rating | Y |
| Load Range | XL |
| Section Width (mm) | 285 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 29.9 |
| Tread Depth (/32") | 9 |
| Treadwear | 420 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 420AAA |
Frequently asked questions
What are the treadwear and warranty ratings on the Continental ContiSportContact 5?
This tire carries a treadwear grade of 420, traction grade AA, temperature grade A under UTQG.
What does 109Y mean on the Continental ContiSportContact 5?
109Y breaks down as load index 109 — rated for 2,271 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 285/40R21 is a summer tire.
Keep shopping
Browse Continental tires, see every Continental ContiSportContact 5 size, or view all tires at ThreePiece.us.
- BRAND:
- Continental
- Model:
- ContiSportContact 5
- Size:
- 285/40R21XL
- Aspect Ratio:
- 40
- Load Index:
- 109
- Load Range:
- XL
- Section Width:
- 285
- Service Description:
- 109Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 29.9
- Tire Type:
- Summer
- Traction:
- AA
- Tread Wear:
- 420
- Tread Depth:
- 9
- UQTG:
- 420AAA
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