The Mastertrack UN203 Radial is a radial trailer tire for highway use. Mastertrack makes tires for passenger vehicles, light trucks, specialty trailers and commercial trucks, and says its products are engineered and tested under strict quality controls. For the UN203, that work is aimed at traction and long-lasting durability behind a towing vehicle.
The ST235/85R16 light truck size is rated 125/122M for load and speed, load range E. It offers 10/32-inch tread depth, an 80 psi maximum inflation pressure and an overall diameter of about 31.7 inches.
| Tire size | ST 235/85R16 |
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| Tire load index | 125 |
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| Tire speed rating | M |
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| Tire load range | E |
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| Tire season | All-Season |
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| Tire terrain | Highway Terrain |
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| Tire sidewall style | Blackwall |
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| Tread depth | 10/32 |
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| Overall diameter | 31.7 in |
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| Manufacturer | Mastertrack |
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| Tire width | 235 mm |
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| Vehicle fitment type | Universal |
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| Is run flat | N |
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| Vehicle type | Trailer |
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| Construction type | Radial |
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| Electric vehicle tire | N |
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| Automotive parts division | Direct Replacement |
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| Wheel diameter | 16 in |
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| Flotation tire | N |
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| Features | Fits Multiple Makes And models |
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| Items included | Tire Only |
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| Count | 1 |
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| Vehicle class designator | ST |
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| Tire location | Front and Rear Tires |
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| Tire diameter | 16 in |
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| Tire type | Trailer Tires |
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| Model | UN-203 HFST46 |
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| Maximum inflation pressure | 80 psi |
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| Tire aspect ratio | 85 |
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Specifications are as published by the manufacturer. Please confirm the size against the placard on your vehicle before ordering.
