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Michelin
Michelin Pilot Sport A/S 3 Plus 285/40ZR18 101Y - 68255
Michelin Pilot Sport A/S 3 Plus 285/40ZR18 101Y - 68255
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Looking for a 285/40R18 all season tire? The Michelin Pilot Sport A/S 3 Plus is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 285/40R18 means
In the size 285/40R18, 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 18 is the wheel diameter in inches. That works out to an overall diameter of about 26.98 inches, turning roughly 748 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 101 — a maximum load of 1,819 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.
Specifications
| Size | 285/40ZR18 |
| Tire Type | All Season |
| Service Description | 101Y |
| Load Index | 101 |
| Speed Rating | Y |
| Load Range | Standard Load |
| Section Width (mm) | 285 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 27 |
| Tread Depth (/32") | 10 |
| Treadwear | 500 |
| Traction Grade | AA |
| Temperature Grade | A |
| UTQG | 500AAA |
| Warranty | 45K |
Frequently asked questions
What kind of tire is the Michelin Pilot Sport A/S 3 Plus?
The Michelin Pilot Sport A/S 3 Plus in 285/40R18 is a all season tire.
What are the treadwear and warranty ratings on the Michelin Pilot Sport A/S 3 Plus?
This tire carries a treadwear grade of 500, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 45K.
What does 101Y mean on the Michelin Pilot Sport A/S 3 Plus?
101Y breaks down as load index 101 — rated for 1,819 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.
Keep shopping
Browse Michelin tires, see every Michelin Pilot Sport A/S 3 Plus size, or view all tires at ThreePiece.us.
- BRAND:
- Michelin
- Model:
- Pilot Sport A/S 3 Plus
- Size:
- 285/40ZR18
- Aspect Ratio:
- 40
- Load Index:
- 101
- Load Range:
- Standard Load
- Section Width:
- 285
- Service Description:
- 101Y
- Speed Index:
- Y
- Temperature:
- A
- Tire Rim Diameter:
- 27
- Tire Type:
- All Season
- Traction:
- AA
- Tread Wear:
- 500
- Tread Depth:
- 10
- UQTG:
- 500AAA
- Warranty:
- 45K
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