Proxes R

About the Toyo Proxes R

DOT Competition Car Tire Designed for Dry Road Racing. NOT FOR HIGHWAY USE.

Features

* Improved racing tread compound* Wear inspection markers* Newly reinforced sidewall and high-modulus bead filler* Optimized contact patch* DOT Approved for racing purposes only

Benefits

* Increase grip and improve lap times* Indicate wear patterns and longevity* Provides more stability and steering response* Increases footprint length and contact area for improved braking and cornering performance

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.

What the Toyo Proxes R is built for

The Toyo Proxes R is a summer tire, tuned for maximum dry and wet grip in warm conditions; it is not intended for near-freezing temperatures. Fitment category: Passenger Car, CAR, Competition/Racing, Performance, UHP.

Tread life and grip ratings

This tire carries a UTQG rating of 40 C A. The treadwear grade of 40 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 C 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 $236.33 per tire, a full set of four costs $945.32. That is about 38% above the average of the 33 tires we stock in this size, reflecting its position in the range.