Proxes R
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Specifications
| Size | 225/50ZR16 Proxes R (Dot Approved For Racing Purposes ONLY) |
|---|---|
| Width | 225 mm |
| Aspect ratio | 50 |
| Rim diameter | R16 |
| Load index | 92 |
| Speed rating | W |
| Load range | SL |
| Season | Summer |
|---|---|
| UTQG | 40 C A |
| Tread depth | 3.6/32" |
| Weight | 22 lbs |
| Max pressure | 51 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
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 225/50ZR16 size
In the size code 225/50R16, 225 is the section width in millimetres (about 8.9"). 50 is the aspect ratio — the sidewall height is 50% of the width, or roughly 112.5 mm. R16 means radial construction on a 16-inch wheel, giving an approximate overall diameter of 24.9".
The load index 92 means each tire supports up to 1,389 lbs — about 5,556 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 $233.02 per tire, a full set of four costs $932.08. That is about 65% above the average of the 25 tires we stock in this size, reflecting its position in the range.
Frequently asked questions
What does the tire size 225/50R16 mean?
225 is the section width in millimetres, 50 is the aspect ratio (sidewall height as a percentage of width, about 112.5 mm), and R16 indicates radial construction for a 16-inch wheel. Overall diameter is approximately 24.9 inches.
What are the load and speed ratings of the Toyo Proxes R 225/50ZR16?
Its load index of 92 allows up to 1,389 lbs per tire. Its speed rating of W is certified to 168 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.
How much does a set of 4 Toyo Proxes R 225/50ZR16 tires cost?
A single tire is $233.02 and a set of four is $932.08.
Can the Toyo Proxes R 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 R come in other sizes?
Yes — we stock 25 additional Proxes R sizes besides 225/50ZR16. Fit only a size approved for your vehicle.