The Toyo Proxes RR is a DOT competition tire meant only for the racetrack, autocross, track days and driving schools. A semi-slick tread and quick-heating racing compound give strong dry grip and cornering force, while reinforced sidewalls sharpen steering feedback. It is not street legal and is not intended for wet weather or cold temperatures.
This 255/40ZR17 size carries a 120H load and speed rating. It has 4/32-inch tread depth, a 51 psi maximum inflation pressure and an overall diameter of about 25.04 inches.
| Tire size | 255/40R17 |
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| Tire load index | 120 |
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| Tire speed rating | H |
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| Tire load range | B |
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| Tire terrain | Highway Terrain |
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| Uniform tire quality grade (utqg) | 40 C A |
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| Tire treadwear rating | 40 |
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| Mud & snow rated | N |
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| Tire sidewall style | B |
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| Tread depth | 4/32 |
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| Overall diameter | 25.04 in |
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| Manufacturer | Toyo Tires |
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| Tire width | 255 mm |
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| Vehicle fitment type | Universal |
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| Is run flat | N |
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| Vehicle type | Car |
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| Construction type | Radial |
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| Electric vehicle tire | N |
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| Wheel diameter | 17 in |
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| Flotation tire | N |
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| Maximum vehicle rim width | 10.00 in |
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| Features | DOT Approved |
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| Items included | Tires |
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| Minimum vehicle rim width | 8.50 in |
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| Total count | 1 |
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| Vehicle class designator | P |
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| Tire location | Front and Rear Tires |
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| Tire diameter | 17 in |
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| Tire type | Passenger Car Tires |
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| Model | Proxes RR |
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| Maximum inflation pressure | 51 psi |
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| Tire aspect ratio | 40 |
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Specifications are as published by the manufacturer. Please confirm the size against the placard on your vehicle before ordering.
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