Continental ExtremeContact DWS06 PLUS 305/30R21XL 104Y - 15580560000

Looking for a 305/30R21 all season tire? The Continental ExtremeContact DWS06 PLUS is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.

What 305/30R21 means

In the size 305/30R21, 305 is the section width in millimeters (12.01 in), 30 is the aspect ratio — the sidewall stands 30% as tall as the tire is wide, or 91.5 mm (3.60 in) — R denotes radial construction, and 21 is the wheel diameter in inches. That works out to an overall diameter of about 28.20 inches, turning roughly 715 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 104 — a maximum load of 1,984 lbs per tire. The speed symbol Y corresponds to a maximum sustained speed of 186 mph.

Load Range E corresponds to a 10-ply rating.

Specifications

Frequently asked questions

What kind of tire is the Continental ExtremeContact DWS06 PLUS?

The Continental ExtremeContact DWS06 PLUS in 305/30R21 is a all season tire.

What are the treadwear and warranty ratings on the Continental ExtremeContact DWS06 PLUS?

This tire carries a treadwear grade of 460, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 50K.

What does 104Y mean on the Continental ExtremeContact DWS06 PLUS?

104Y breaks down as load index 104 — rated for 1,984 lbs per tire — with a Y speed rating, good for a maximum sustained 186 mph.

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