Proxes R1R
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Specifications
| Size | 225/45ZR16 Proxes R1R |
|---|---|
| Width | 225 mm |
| Aspect ratio | 45 |
| Rim diameter | R16 |
| Load index | 89 |
| Speed rating | W |
| Load range | SL |
| Season | Summer |
|---|---|
| UTQG | 140 AA A |
| Tread depth | 8.1/32" |
| Weight | 22.5 lbs |
| Max pressure | 51 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Toyo Proxes R1R
Summer High Performance Passenger Car tire for Serious Street Driving in Sports Coupes and Sedans.
Features
* Silica-reinforced, high-grip tread compound* Unidirectional arrowhead tread design* Tapered center block edge* Multi-width EVAC channels* Stability control slits* Advanced autocross-inspired casing with modified radial construction* Toyo Tires' Limited Warranty
Benefits
* Improves grip for better handling and performance during high-spirited driving* Shallow grooves and a unidirectional pattern achieve balanced performance between wet and dry conditions* Stabilizes center block movement to decrease irregular wear * Helps to increase hydroplaning resistance* Improve water evacuation * Narrow width at the tire edge widens the shoulder block area to enhance steering* Provide resistance to irregular wear* Improve dry performance by maintaining block stiffness during aggressive braking* Improves steering response and handling by optimizing the contact patch shape
Understanding the 225/45ZR16 size
In the size code 225/45R16, 225 is the section width in millimetres (about 8.9"). 45 is the aspect ratio — the sidewall height is 45% of the width, or roughly 101.3 mm. R16 means radial construction on a 16-inch wheel, giving an approximate overall diameter of 24".
The load index 89 means each tire supports up to 1,279 lbs — about 5,116 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 R1R is built for
The Toyo Proxes R1R 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, Performance, HP.
Tread life and grip ratings
This tire carries a UTQG rating of 140 AA A. The treadwear grade of 140 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 AA 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 $148.40 per tire, a full set of four costs $593.60. That is about 12% below the average price of the 4 tires we stock in this size.
Frequently asked questions
What does the tire size 225/45R16 mean?
225 is the section width in millimetres, 45 is the aspect ratio (sidewall height as a percentage of width, about 101.3 mm), and R16 indicates radial construction for a 16-inch wheel. Overall diameter is approximately 24 inches.
What are the load and speed ratings of the Toyo Proxes R1R 225/45ZR16?
Its load index of 89 allows up to 1,279 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 R1R 225/45ZR16 tires cost?
A single tire is $148.40 and a set of four is $593.60.
Can the Toyo Proxes R1R 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 R1R come in other sizes?
Yes — we stock 21 additional Proxes R1R sizes besides 225/45ZR16. Fit only a size approved for your vehicle.