Azenis RT615K+

About the Falken Azenis RT615K+

Motorsports Inspired Summer Maximum Performance DOT Approved Passenger Car tire Ideal for Performance Coupes, Sport Coupes, Sports Sedans and Muscle Cars.

Features

* 4D nano design tread compound* Solid center rib* Massive sport side shoulder blocks* High-tension carcass* Street capable durability and DOT approval

Benefits

* Provides excellent traction and durability through advanced biomass materials, which helps improve tread flexibility and adhesion while simultaneously reducing polymer heat generation* Significantly reduces wheel spin by reducing contact-patch void ratio under heavy acceleration* Deliver motorsports-level grip and unsurpassed cornering response* Increases handling response and high-speed stability* Allows for street-legal daily use

Understanding the 255/40ZR17 size

In the size code 255/40R17, 255 is the section width in millimetres (about 10"). 40 is the aspect ratio — the sidewall height is 40% of the width, or roughly 102 mm. R17 means radial construction on a 17-inch wheel, giving an approximate overall diameter of 25".

The load index 94 means each tire supports up to 1,477 lbs — about 5,908 lbs across a full set of four. The speed symbol W certifies the tire to 168 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.

Tread life and grip ratings

This tire carries a UTQG rating of 200 A A. The treadwear grade of 200 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 A 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 $143.25 per tire, a full set of four costs $573.00. That is about 16% below the average price of the 33 tires we stock in this size.