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480x12 trailer tires are types of tires that are used on trailers and other towable vehicles. They are designed to provide a smooth and stable ride when towing heavy loads. The size of these tires indicates their dimensions, with the 480 referring to the tire's width in millimeters and the 12 referring to the diameter of the wheel in inches.
There are several different types of 480x12 trailer tires, each with its own unique features and benefits. Here are some common types:
Bias Ply Tires:
This type of 480x12 trailer tire has layers of rubber-coated fabric plies that intersect at 30 degrees at the tire's core. This construction offers good stability and puncture resistance, making bias-ply tires a popular choice for off-road and trailer applications. However, bias ply tires tend to generate more heat and have a shorter tread life than radial tires.
Radial Tires:
These tires have layers of steel belts and rubber-coated fabric plies that extend from the tire's bead to its shoulder. This construction allows the sidewalls and tread to flex independently, providing better traction, longer tread life, and a smoother ride. Due to these benefits, radial tires are more commonly used on trailers and other towable vehicles.
Load Range G Tires:
These types of 480x12 trailer tires are designed to support heavy loads. They have a maximum load capacity of 4,400 pounds per tire and are often used on large trailers and RVs. Load Range G tires provide good stability and safety when towing heavy loads but may have a rougher ride than lower load range tires.
Tread Patterns:
These include tires with symmetric, asymmetric, and directional tread patterns. Symmetrical tread patterns have identical tread patterns across the tire's surface, providing good stability and wear resistance. Asymmetric patterns combine different tread patterns on the inner and outer tire sections, offering better grip and handling. Directional patterns feature a tread design that channels water away from the tire's contact patch, improving traction on wet roads.
Here's a breakdown of the specifications of the 480x12 trailer tires:
Tire size:
480x12 trailer tires are represented by a 4.80-12 size. The width of the tire is 4.80 inches. The 12-inch number represents the wheel diameter in inches.
Load rating:
These tires have a load rating of C or 6PR. They can support 1,360 pounds when fully inflated. The load rating indicates the maximum load the tire can handle.
Speed rating:
These trailer tires have a speed rating of M, with a maximum speed of 81 mph. The speed rating indicates the maximum speed the trailer tires can handle.
Tread depth:
480x12 trailer tires have a tread depth of 6/32 to 8/32 inches. Deep treads provide better traction on wet and dry roads, while shallow treads reduce noise when driving.
Tread design:
These trailer tires feature a symmetrical tread design. The identical left and right sides provide stable handling and predictable traction.
Construction type:
480x12 trailer tires are bias-ply tires. The plies of the fabric cords overlap at 30 to 45 degrees. Bias-ply tires provide good traction and a comfortable ride, making them suitable for off-road use.
Here are some tips for maintaining the 480x12 trailer tires:
Check tire pressure:
Tires should be checked at least once a month. The pressure of all tires, including the spare, should be checked when they are cold. The owner's manual should be consulted for the proper pressure. The pressure should be adjusted if it is too high or too low.
Check tire tread depth:
The tread depth should be measured using a ruler or a tread depth gauge. The minimum tread depth should be known and the tire replaced when the tread reaches the minimum depth. A new tire should be purchased before a long trip to ensure adequate traction.
Check tire condition:
The tires should be inspected for cracks, bulges, tears, and other damage. The sidewalls, treads, and shoulders should be checked for uneven wear patterns. Any damaged tires should be repaired or replaced. The cause of any uneven wear pattern should be corrected.
Rotate tires:
The owner's manual should be consulted for the recommended rotation schedule. The tires should be rotated when the trailer is towed for 1,000 miles or every six months, whichever comes first. The front and rear tires should be removed and installed in the opposite positions.
Balance tires:
The owner's manual should be consulted for the recommended balance schedule. The tires should be balanced when the trailer is towed for 2,000 miles or every year, whichever comes first. The wheels should be removed and installed after being balanced by a professional.
Load Capacity:
Each trailer tire has a load rating that indicates how much weight it can support. The total weight of the loaded trailer should not exceed the combined capacity of all tires. When selecting new trailer tires, consider future loading requirements as well.
Tread Design:
A trailer's tire tread pattern affects road grip, noise level, and wear resistance. For on-road trailers, all-terrain tires are ideal since they provide adequate traction and comfort on paved roads and light off-road conditions. Off-road camper trailer tires are appropriate for trailers meant for off-road use.
Construction:
480x12 trailer tires can be bias or radial. Bias tires are more robust and less prone to blowouts, making them suitable for off-road use. Radial tires have better grip and fuel efficiency, making them appropriate for on-road use.
Size:
All trailers must have tires of the same size and specification. This ensures stability and even weight distribution.480x12 trailer tire size means the tire measures 48 inches in diameter and 12 inches wide. The size should be appropriate for the trailer model.
Speed Rating:
Speed-rated trailer tires are suitable for high-speed trailers. The speed rating should match or exceed the trailer's maximum speed.
Replacing 48x12 trailer tires can be a straightforward DIY task. Follow this step-by-step guide to ensure a successful trailer tire replacement:
Prepare for Replacement
Find a flat, stable surface to change the trailer tire. Gather the necessary tools: new 480x12 trailer tire, jack, jack stand, lug wrench, and torque wrench. If replacing two tires, ensure they are both identical.
Loosen Lug Nuts
Use the lug wrench to loosen the lug nuts on the wheel(s) being replaced. Do this while the trailer is still on the ground for stability.
Lift the Trailer
Position the jack under the trailer's designated jacking point and lift the trailer until the tire clears the ground. Once the trailer is secure on the jack, use the jack stand for extra stability.
Remove Old Tires
Completely remove the lug nuts and take off the old tire. Clean the hub surface where the new tire will be mounted.
Mount New Tires
Place the new 480x12 trailer tire onto the wheel hub, ensuring proper alignment with the mounting surface. Hand-tighten the lug nuts in a star pattern to ensure even tightening.
Lower the Trailer
Lower the trailer by using the jack and remove the jack stand. Once the trailer is on the ground, shake the wheel gently to ensure stability.
Tighten Lug Nuts
Use a torque wrench to tighten the lug nuts in a star pattern to the manufacturer's specified torque. This step ensures the even distribution of pressure and secures the wheel firmly to the hub.
After finishing these steps, the trailer tire replacement will be complete. Before towing or driving the trailer, double-check that all tools are removed from the trailer and that the new tires are correctly installed.
Q1: How long do 480x12 trailer tires last?
A1: The expected lifespan of 480x12 trailer tires can be influenced by various factors such as driving habits, load capacity, and tire maintenance. These tires can serve up to six years with proper care.
Q2: Can 480x12 trailer tires be used on trucks?
A2: 480x12 trailer tires are specifically designed for use on trailers and not for trucks. Nevertheless, they might be compatible with certain models of small, light-duty trucks. It is important to consult the truck's owner's manual or a tire specialist to verify their suitability.
Q3: Do 480x12 trailer tires have good off-road capabilities?
A3: Standard 480x12 trailer tires are not designed for off-road conditions. However, there are special types of trailer tires that can handle off-road conditions. These tires have aggressive tread patterns that provide better traction on uneven surfaces.
Q4: Are 480x12 trailer tires suitable for winter conditions?
A4: 480x12 trailer tires are not specifically designed for winter conditions. In case of winter trailer use, buyers should equip the trailer with winter tires that offer better grip and safety on snow and ice.
Q5: Are 480x12 trailer tires radial and bias-ply available?
A5: Yes, both radial and bias-ply 480x12 trailer tires are available. Bias-ply tires have a traditional design and are suitable for off-road and agricultural trailers. However, radial tires are most common due to their better performance and durability.