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Pilot Sport 4
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Specifications
| Size | 245/40ZR18 Pilot Sport 4 |
|---|---|
| Width | 245 mm |
| Aspect ratio | 40 |
| Rim diameter | R18 |
| Load index | 93 |
| Speed rating | Y |
| Load range | SL |
| Season | Summer |
|---|---|
| UTQG | 320 AA A |
| Treadwear warranty | 20,000 miles |
| Tread depth | 9.5/32" |
| Weight | 24.8 lbs |
| Max pressure | 51 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Michelin Pilot Sport 4
Summer Ultra-High Performance Passenger Car tire.
Features
* Dynamic Response Technology* Formula-E tread pattern combined with a new generation of functional elastomers and silica* Less rolling resistance* Exterior sidewall with Premium Touch Design and a deep rim protector* 20,000 Mile/30,000 km Manufacturer's Treadwear Limited Warranty - Available on: Speed Rating: W, Y, (Y)* Standard Manufacturer's Limited Warranty
Benefits
* Ensures optimum transmission of steering instructions to the road* Provide excellent grip and braking* For improved efficiency
Understanding the 245/40ZR18 size
In the size code 245/40R18, 245 is the section width in millimetres (about 9.6"). 40 is the aspect ratio — the sidewall height is 40% of the width, or roughly 98 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 25.7".
The load index 93 means each tire supports up to 1,433 lbs — about 5,732 lbs across a full set of four. The speed symbol Y certifies the tire to 186 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.
What the Michelin Pilot Sport 4 is built for
The Michelin Pilot Sport 4 is a summer tire, tuned for maximum dry and wet grip in warm conditions; it is not intended for near-freezing temperatures. Fitment category: Passenger Car, CAR, Performance, UHP.
Tread life and grip ratings
This tire carries a UTQG rating of 320 AA A. The treadwear grade of 320 is a relative durability score — a grade of 200 is expected to last roughly twice as long as a grade of 100 under the same controlled test. Traction grade AA measures straight-line wet stopping grip (AA is highest, then A, B and C). Temperature grade A reflects heat resistance at sustained speed (A is highest).
Price and value
At $186.74 per tire, a full set of four costs $746.96. That is about 9% above the average of the 127 tires we stock in this size, reflecting its position in the range. Backed by a 20,000-mile treadwear warranty, that works out to roughly $37.35 per 1,000 miles across the set.
Frequently asked questions
What does the tire size 245/40R18 mean?
245 is the section width in millimetres, 40 is the aspect ratio (sidewall height as a percentage of width, about 98 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 25.7 inches.
What are the load and speed ratings of the Michelin Pilot Sport 4 245/40ZR18?
Its load index of 93 allows up to 1,433 lbs per tire. Its speed rating of Y is certified to 186 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.
How much does a set of 4 Michelin Pilot Sport 4 245/40ZR18 tires cost?
A single tire is $186.74 and a set of four is $746.96, covered by a 20,000-mile treadwear warranty.
Can the Michelin Pilot Sport 4 be used in winter?
No. This is a summer tire and it is not rated for severe snow service. Its compound stiffens as temperatures approach freezing, so fit winter or all-weather tires for cold-season driving.
Does the Pilot Sport 4 come in other sizes?
Yes — we stock 80 additional Pilot Sport 4 sizes besides 245/40ZR18. Fit only a size approved for your vehicle.