2007 Trailer Tires & Wheels Catalogue(PDF) - Carlisle Tires
2007 Trailer Tires & Wheels Catalogue(PDF) - Carlisle Tires
2007 Trailer Tires & Wheels Catalogue(PDF) - Carlisle Tires
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Speed Ratings<br />
WARNING:<br />
WARNING:<br />
<strong>Carlisle</strong> Tire & Wheel Company, Inc. (CT&W) trailer tires are designed and branded as ST (Special <strong>Trailer</strong>) tires.<br />
• CT&W ST tires are designed, tested, and labeled to meet Industry Standards in accordance with Tire & Rim Association (T&RA) and<br />
Department of Transportation (DOT) guidelines.<br />
• Based on industry standards published by T&RA, unless a different speed restriction is indicated on the sidewall of the tire, CT&W ST tires<br />
are speed rated to 65 mph under normal inflation and load conditions..<br />
• T & RA standards indicate that if an ST tire is used at speeds between 66 and 75 mph, it will be necessary to increase the cold inflation by<br />
10 psi above the normal, recommended cold inflation pressure.<br />
o Do not exceed the maximum pressure for the wheel.<br />
o If the maximum pressure for the wheel prohibits increasing the psi, the max speed must be restricted to 65 mph.<br />
o Cold inflation pressure must not exceed 10 psi beyond the inflation specified for the maximum load of the tire.<br />
• T& RA standards indicate that if an ST tire is used at speeds between 76 and 85 mph, it will be necessary to increase the cold inflation<br />
by 10 psi above the normal recommended cold inflation pressure. It should be noted, however, that increasing the cold inflation psi and<br />
operating at the speeds indicated, would result in decreasing the load capacity of the tire by 10%.<br />
o Do not exceed the maximum pressure for the wheel.<br />
o If the maximum pressure for the wheel prohibits increasing the psi, the max speed must be restricted to 65 mph.<br />
o Cold inflation pressure must not exceed 10 psi beyond the inflation specified for the maximum load of the tire.<br />
• Drivers should always obey posted speed limits and reduce speeds when necessary based on vehicle, road, weather or traffic conditions.<br />
• <strong>Trailer</strong> tires should be operated at inflation pressures that are specified by the trailer manufacturer. The trailer manufacturer’s inflation<br />
information can typically be located in the owners manual, tire information placard or on the vehicle certification label, which should be<br />
located on the forward left side of the trailer.<br />
• Tire pressures should be checked monthly, or daily during trips.<br />
• Never exceed the maximum load capacity for tires or trailers.<br />
<strong>Carlisle</strong> Tire & Wheel Company<br />
Speed Ratings
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