Description
ST145R12 Trailer Tire/Wheel | Boat Supply Store
Ensure secure and stable transport for your watercraft with this robust ST145R12 trailer tire and wheel assembly. Featuring a Load Range C rating, it is engineered to support trailers carrying moderate vessel weights, ideal for vessels up to 2,000 lbs. The 12-inch diameter wheel provides optimal ground clearance and stability during transit across varied terrains, crucial for reaching popular Texas fishing spots like Lake Fork.
Key Features
- Reliable transport for your boat trailer
- Durable construction for demanding road conditions
- Stable performance during highway transit
- Load Range C capacity for medium-duty trailers
- 12-inch wheel diameter for optimal ground clearance
- Ready-to-mount assembly for immediate installation
- Engineered for longevity on various road surfaces
- Compliant with industry standards for safety
Specifications
| Product Specifications | |
|---|---|
| Tire Size | ST145R12 |
| Load Range | C |
| Ply Rating | 6 |
| Wheel Diameter | 12 Inch |
| Bolt Pattern | 5 on 4.5" |
Who This Is For
Boat owners requiring a dependable trailer tire and wheel assembly for their mid-sized vessels. Ideal for those who frequently transport their craft to various marine destinations or fishing expeditions.
How It Compares
| Feature | ST145R12 Trailer Tire/Wheel | Generic Trailer Wheel |
|---|---|---|
| Tire Size | ST145R12 | ST175/80D13 |
| Load Range | C | B |
| Wheel Diameter | 12 Inch | 13 Inch |
| Bolt Pattern | 5 on 4.5" | 5 on 5" |
Common Concerns Answered
How do I know if this tire size is correct for my trailer?
Verify the existing tire sidewall for the 'ST145R12' designation and ensure your trailer's bolt pattern is 5 on 4.5" for compatibility. Consult your trailer's manual for specific recommendations.
What is the maximum weight this tire can carry?
With a Load Range C rating and a 6-ply rating, this tire assembly is designed for trailers with a Gross Vehicle Weight Rating (GVWR) up to 2,000 lbs, ensuring safe load distribution.
Is this a complete assembly or just the tire?
This product is a complete tire and wheel assembly, meaning it comes pre-mounted and ready for installation onto your boat trailer hub.
Frequently Asked Questions
What does 'ST' stand for in ST145R12?
ST designates 'Special Trailer' tires, which are specifically constructed with stiffer sidewalls and heavier load capacities for trailer applications, unlike passenger tires.
What is the significance of the '6-ply' rating?
A 6-ply rating indicates the tire has the equivalent strength of six nylon cord plies, contributing to its Load Range C capacity and ability to withstand trailer loads.
How does the bolt pattern affect fitment?
The 5 on 4.5" bolt pattern refers to the number of lug holes (5) and the diameter of the circle they form (4.5 inches), which must match your trailer's axle hub for proper mounting.
Can this tire be used on a boat trailer going off-road?
While designed for road use, the robust construction of ST tires offers superior durability for trailer applications, including access to boat ramps and unimproved launch sites.
What is the recommended tire pressure for this assembly?
Always refer to the tire sidewall for the maximum cold inflation pressure. For optimal performance and safety, maintain the pressure recommended by your trailer manufacturer.
