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Michelin
Michelin Pilot Super Sport 225/40ZR18 88Y - 49739
Michelin Pilot Super Sport 225/40ZR18 88Y - 49739
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Shop the Michelin Pilot Super Sport 225/40R18 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 225/40R18 means
In the size 225/40R18, 225 is the section width in millimeters (8.86 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 90.0 mm (3.54 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.09 inches, turning roughly 804 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 88 — a maximum load of 1,235 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 225/40ZR18 |
| Tire Type | Summer |
| Service Description | 88Y |
| Load Index | 88 |
| Speed Rating | Y |
| Load Range | Standard Load |
| Section Width (mm) | 225 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 25.1 |
| Tread Depth (/32") | 9 |
| Treadwear | 300 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 300AAA |
| Warranty | 30K |
Frequently asked questions
What are the treadwear and warranty ratings on the Michelin Pilot Super Sport?
This tire carries a treadwear grade of 300, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 30K.
What does 88Y mean on the Michelin Pilot Super Sport?
88Y breaks down as load index 88 — rated for 1,235 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
What kind of tire is the Michelin Pilot Super Sport?
The Michelin Pilot Super Sport in 225/40R18 is a summer tire.
Keep shopping
Shop all 225/40R18 tires, browse Michelin tires, see every Michelin Pilot Super Sport size, or view all tires at ThreePiece.us.
- Brand:
- Michelin
- Model:
- Pilot Super Sport
- Size:
- 225/40ZR18
- Aspect Ratio:
- 40
- Load Index:
- 88
- Load Range:
- Standard Load
- Section Width:
- 225
- Service Description:
- 88Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 25.1
- Tire Type:
- Summer
- Traction:
- AA
- Tread Wear:
- 300
- Tread Depth:
- 9
- UQTG:
- 300AAA
- Warranty:
- 30K
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