Pirelli Cinturato P7 (P7C2) 255/50R18 106Y - 3140400

The Pirelli Cinturato P7 (P7C2) in 255/50R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.

What 255/50R18 means

In the size 255/50R18, 255 is the section width in millimeters (10.04 in), 50 is the aspect ratio — the sidewall stands 50% as tall as the tire is wide, or 127.5 mm (5.02 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 28.04 inches, turning roughly 719 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 106 — a maximum load of 2,094 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.

Specifications

Frequently asked questions

What does 106Y mean on the Pirelli Cinturato P7 (P7C2)?

106Y breaks down as load index 106 — rated for 2,094 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.

What kind of tire is the Pirelli Cinturato P7 (P7C2)?

The Pirelli Cinturato P7 (P7C2) in 255/50R18 is a summer tire.

Will 255/50R18 tires fit my vehicle?

Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 255/50R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.

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