Toyo Proxes RR 255/40ZR17 Proxes RR (Dot Approved For Racing Purposes ONLY)
Toyo

Proxes RR

255/40ZR17
Summer
$245.33/tire $327.11
Set of 4: $981.32
Minimum order: 4 tires (sizes can be mixed) ? Selling in sets of 4 is how we keep our prices this low — and a matching set keeps your car balanced and safe.
Most drivers replace all four for even wear and handling.
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Specifications

Size255/40ZR17 Proxes RR (Dot Approved For Racing Purposes ONLY)
Width255 mm
Aspect ratio40
Rim diameterR17
Load rangeSL
SeasonSummer
UTQG40 C A
Tread depth3.7/32"
Weight23.8 lbs
Max pressure51 psi
Severe snow (3PMSF)No
Run-flatNo

About the Toyo Proxes RR

DOT Competition Racing tire Designed for Dry Tracks. Ideal for NASA Road Racing, Track Days and High-Performance Driving Schools. Race-Ready Off-the-Shelf with a 4/32 Deep Tread.

Features

* Racing tread compound* Reinforced sidewall and high-modulus bead filler* Wear inspection holes* Sidewall marking area* Toyo Tires' Limited Warranty

Benefits

* Increase grip and improves lap time* Provides excellent steering response and feedback* Provides easy tread depth measurement from any position* Allows for easy labelling on the sidewall

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".

What the Toyo Proxes RR is built for

The Toyo Proxes RR 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 $245.33 per tire, a full set of four costs $981.32. That is about 44% above the average of the 33 tires we stock in this size, reflecting its position in the range.

Frequently asked questions

What does the tire size 255/40R17 mean?

255 is the section width in millimetres, 40 is the aspect ratio (sidewall height as a percentage of width, about 102 mm), and R17 indicates radial construction for a 17-inch wheel. Overall diameter is approximately 25 inches.

How much does a set of 4 Toyo Proxes RR 255/40ZR17 tires cost?

A single tire is $245.33 and a set of four is $981.32.

Can the Toyo Proxes RR be used in winter?

No. This is a summer tire and it is not rated for severe snow service. Its compound stiffens as temperatures approach freezing, so fit winter or all-weather tires for cold-season driving.

Does the Proxes RR come in other sizes?

Yes — we stock 26 additional Proxes RR sizes besides 255/40ZR17. Fit only a size approved for your vehicle.

Other sizes of this model

Similar tires in 255/40R17

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