Yokohama YOK Advan Sport A/S+ 255/35R18/4

Looking for a 255/35R18 high performance tire? The Yokohama Advan Sport A/S+ is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 255/35R18 means

In the size 255/35R18, 255 is the section width in millimeters (10.04 in), 35 is the aspect ratio — the sidewall stands 35% as tall as the tire is wide, or 89.2 mm (3.51 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.03 inches, turning roughly 806 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 manufacturer lists the overall diameter of this specific tire as 18 inches — when clearance is tight, go by the published figure rather than the nominal size math.

The service description on this tire decodes to a load index of 94 — a maximum load of 1,477 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.

Specifications

Frequently asked questions

What kind of tire is the Yokohama Advan Sport A/S+?

The Yokohama Advan Sport A/S+ in 255/35R18 is a high performance tire.

What are the treadwear and warranty ratings on the Yokohama Advan Sport A/S+?

This tire carries a treadwear grade of 440, traction grade AA, temperature grade A under UTQG. The manufacturer's warranty is 55K.

What does 94Y mean on the Yokohama Advan Sport A/S+?

94Y breaks down as load index 94 — rated for 1,477 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.

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