Cooper Discoverer AT3 4S 275/45R22XL 112H - 171032002

Looking for a 275/45R22 all season tire? The Cooper Discoverer AT3 4S is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 275/45R22 means

In the size 275/45R22, 275 is the section width in millimeters (10.83 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 123.8 mm (4.87 in) — R denotes radial construction, and 22 is the wheel diameter in inches. That works out to an overall diameter of about 31.74 inches, turning roughly 635 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 112 — a maximum load of 2,469 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.

Specifications

Frequently asked questions

What kind of tire is the Cooper Discoverer AT3 4S?

The Cooper Discoverer AT3 4S in 275/45R22 is a all season tire.

What are the treadwear and warranty ratings on the Cooper Discoverer AT3 4S?

This tire carries a treadwear grade of 620, traction grade A, temperature grade B under UTQG.

What does 112H mean on the Cooper Discoverer AT3 4S?

112H breaks down as load index 112 — rated for 2,469 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.

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