*Tread pattern & sidewall design may vary from pictures

New Tire

Contender ST Radial

145R12, 87/84M, D (8 Ply)
  • Season:  All Season
    • Load/Speed: 87/84M
  • PERFORMANCE: Highway
  • Speed Rated Up to 81 mph
  • Load Range: D (8 Ply)

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MSRP $101.75
$83.99 Per Tire
Total for 4: $335.96
Total for 4: $335.96
You save  $17.76 (17%)
In Stock (10+)
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Tire Specifications

  • SKU N1517142-99
  • Season All Season
  • Sidewall BSW: Black Side Wall
  • Car Type Trailer
  • Size 145R12
  • Load Range D (8 Ply)
  • Brand Contender
  • Load Index 87/84
  • Tread Depth N/A
  • Performance Highway
  • UTQG N/A
  • Treadlife/Warranty N/A
  • Run Flat No
  • Model ST Radial
  • Speed Rating Description Speed Rated Up to 81 mph
  • Rim Diameter 12
  • Overall Diameter 21.4

Attention! Due to the size of the tires, Packages might be SEPARATED in the courier facility and not be DELIVERED on the SAME DAY, even though we do ship them together. Tracking information can be checked by logging on to the courier website with the master tracking number you will receive via email. For example, you can receive 3 tires in one day and the 4th one the next day or the day after, or one tire in one day and the second one day after. We understand that this is a big inconvenience for our buyers, however, this is ABSOLUTELY out of our control.


Contender ST Radial


  • Trailer tire model
  • Enhanced controllability
  • Better load durability
  • Longer lasting tread life


The Contender ST Radial is a highway terrain, all season tire manufactured for trailers. This tire is NOT MEANT TO BE MOUNTED ON LIGHT TRUCKS, as its construction will not support the weight and performing style of such vehicles. It can ONLY BE MOUNTED ON TRAILERS.

The tire greatly improves the year round performing ability. The all season compound works together with the detailed, ribbed tread design in order to optimize the summer and winter traction. The tread elements with the siping and notch placement increase the grip on the road surface throughout the year. The compound elements maintain their flexibility thanks to the stronger rubber materials used during the tire's manufacturing. The tread design's groove pattern avoids hydroplaning and prevents water and slush from cutting off the tire's surface contact.

A better controllability is guaranteed with the symmetric ribbed tread design. The flat footprint with the three continuous center ribs ensure the surface contact while the tires are in motion. In this manner, the tire upgrades the steering responsiveness and the driving stability. As a result, the tire increases the steering response time and accuracy to the driver's commands, while the structure is secured against the driving pressure affecting the tire. The shoulder block pattern helps to improve the cornering and maneuvering capability, while the tires are in motion.

The reinforced internal structure keeps the ideal tire shape under the load and driving pressure. The construction features a reinforced double steel belt and polyester cord structure which maintains the ideal tire shape under the pressure. As the tire does not deform, it is able to actively handle and carry heavy loads with ease. This results in the tire's better load capacity, ensuring its secure heavy-duty application at all times.

The Contender ST Radial increases the length of the tread life. Tread separation is avoided. The nylon tread-firming belt overlay protects the tread area and effectively prevents tread separation. On the other hand, the tread bar pattern ensures even pressure circulation across the tread area. This effectively avoids irregular and premature wear formations. The combination of these enhancements greatly boosts the tire's overall service life.

There might be discrepancies of sizes between brands and models of tires which have this size formatting. As the manufacturers only provide the tire width and the rim diameter with these tires, various brands and models will have size differences. In order to ensure the correct size is purchased, the overall tire diameter that is needed should be checked.

The Overall Diameter or O.D. advertized represents the tire's overall diameter in inches, once the tire has been properly inflated and mounted per the manufacturer's recommendation. This advertised number is provided to Priority Tire by the tire manufacturer.

Manufacturers recommend changing tires every 10 years. As long as tires are properly stored before they are sold, the year of their manufacture will not shorten their service life.


Shipping Information


If an order is placed before 1pm EST on a business day we ship the order the same day.

If it is placed after 1pm EST or over the weekend, we will ship the order out the following business day. Depending where you are located in the 48 contiguous states FedEx will take approximately 1-6 business days to deliver the tires to you from any of our three main warehouses located in Pennsylvania, Texas, and Florida and/or our smaller warehouses which are located across the country.

For a more specific time frame contact us via e-mail or telephone 866-480-8477.

Compatible Vehicles

IMPORTANT INFORMATION: Please note this is Original Equipment (O.E.) tire size only. The O.E. size is determined by the year, make, model and options of the vehicle. Original Equipment size data is the best information we currently have available to us. is not responsible for fitment errors. The most important aspect of purchasing a tire is its size, which cannot vary. It is buyer's responsibility to verify the tire size information. It is buyer's responsibility to verify whether a specific tire is suitable for a specific vehicle. However, this tire size may be fitted on other vehicles as well. To ensure that you are purchasing the correct tire size for your vehicle, please check the size of your currently mounted tires (locate on the tire's sidewall). The tire's sidewall also features the speed and load rating, indicating the speed and load capacity of the specific tire. The speed and load index can differ from the tires you currently have mounted on your vehicle up to a degree. Please check your vehicle's Owner's Manual or consult with your mechanic regarding the changes of your tire's speed rating and load index. If you have any questions regarding your tire size , speed rating and load index please contact us prior to purchasing and confirm with certified auto technician of any variance in speed and load index and sizes.

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