Choose the Right Tire Size For Your Vehicle: Comparing 275 65R18 and 255 70R18

The 255 70R18 has a larger overall diameter and is given a higher load capacity than the 275 65R18.

275 65R18 Vs 255 70R18

The two tire size measurements for 275 65R18 Vs. 255 70R18 provide drivers with different performance options. First and foremost, the 275 65R18 tire has a much wider surface area than the 255 70R18. This gives drivers more traction and stability while cornering or driving at higher speeds. Additionally, the 275 65R18 has a larger sidewall height compared to the 255 70R18, meaning its sidewalls provide more cushioning when driving over bumps and other road hazards. Conversely, the 255 70R18 has a narrower width but a taller sidewall that improves contact with the ground at low RPM levels and increases cornering power on soft surfaces. Both tires deliver excellent grip while ensuring a comfortable ride, although they are designed to work best in different conditions- making the choice dependant on individual preferences and driving conditions.

Radial Size

The radial size of a tire is the measurement used to identify the width and diameter of the tire. The 275 65R18 and 255 70R18 tires are similar in width, but the 275 is taller overall than the 255. The first three digits of the tire size refer to the width in millimeters and the last two numbers refer to the aspect ratio, or height of sidewall relative to tire width. The R18 indicates that this is a radial tire with an 18 inch wheel diameter.

Sidewall Height

The sidewall height is another important factor when comparing tire sizes. The sidewall height of a 275 65R18 tire is approximately 5.3 inches while the 255 70R18 has a sidewall height of 6 inches. This difference in sidewall height can affect handling characteristics and overall ride quality as well as load capacity, so it’s important to consider when choosing between these two sizes.

Tread Design

Tread design is also an important factor when considering which size tire to purchase. The 275 65R18 and 255 70R18 tires both feature symmetric tread patterns, meaning there are no differences between one side of the tread pattern versus another side. This type of symmetric tread pattern provides even wear across all four tires, which helps ensure long life and even performance on all four corners of your vehicle.

Performance & Load Capacity Comparison

When it comes to performance and load capacity comparison between these two sizes, there are a few things you should consider. First, both tires are rated for load capacity based on their ply construction which determines how much weight each tire can handle safely at its maximum pressure rating. Secondly, both tires have similar speed ratings meaning they can safely handle speeds up to 118 mph (190 km/h).

Durability & Mileage Comparison

Durability and mileage comparison between these two sizes can be quite different depending on how you drive them. Both tires feature tread wear indicators that let you know when it’s time to replace them due to wear or damage, but they also have different compound compositions that can affect their overall longevity as well as their grip in wet weather conditions or other road hazards like potholes or gravel roads. In general, however, both tires should provide good performance and longevity under normal driving conditions with proper maintenance and care throughout their lifespan.

Cost Analysis

Finally, cost analysis between these two sizes will depend largely on where you purchase them from as well as any additional fitting costs associated with installation or balancing services if applicable. Generally speaking though, larger sized tires tend to be more expensive than smaller ones due to their increased weight and diameter requirements for production and manufacturing costs associated with them so expect the 275 65R18 to be slightly more expensive than its smaller counterpart – the 255 70R18 – regardless of where you purchase them from for your vehicle

Size

The size of the 275 65R18 tires is slightly larger than the 255 70R18 tires. The first number (275) is the width of the tire in millimeters, and the second number (65) is the aspect ratio, which tells you what percentage of that width is comprised of sidewall height. The R stands for radial construction, and the 18 is the wheel diameter in inches. The 255 70R18 tires have a lower width and taller sidewall height compared to 275 65R18 tires.

Performance

The performance of both tire sizes can vary depending on how they are used. Generally speaking, however, 275 65R18 tires provide better handling performance due to their wider contact patch and lower sidewall height. This allows them to have better grip in corners and more stability when driving at higher speeds. On the other hand, 255 70R18 tires offer a more comfortable ride due to their taller sidewall height and softer compound. This means they absorb bumps better and provide a smoother ride quality overall.

Fuel Efficiency

In terms of fuel efficiency, 275 65R18 tires tend to be slightly less efficient than 255 70R18 tires due to their wider contact patch and lower sidewall height. This means that they require more energy to move them forward as they have more friction with the road surface. On the other hand, 255 70R18 tires offer better fuel efficiency due their narrower contact patch and taller sidewall height which reduces rolling resistance.

Cost

The cost of both tire sizes will vary depending on where you purchase them from but generally speaking 275 65R18 tires tend to be more expensive than 255 70R18 tires due to their larger size and performance capabilities.

FAQ & Answers

Q: How do 275 65R18 and 255 70R18 compare in size?
A: The 275 65R18 has a radial size of a 275mm and the 255 70R18 has a radial size of 255mm. The sidewall height difference between these two tires is 15mm, with the 275 65R18 having the taller sidewall.

Q: What are the differences between tread designs for these two tires?
A: The 275 65R18 has a symmetric tread design while the 255 70R18 has an asymmetric tread design. Both tires have different tread patterns that are designed to provide optimum traction on wet and dry roads.

Q: What are the performance and load capacity differences between these two tire sizes?
A: Both tires have different load capacity ratings based on their ply construction (4-ply for the 275 65R18 and 6-ply for the 255 70R18). They also have different speed ratings – H (130 mph) for the 275 65R18 and V (149 mph) for the 255 70R18.

Q: How do these two tire sizes compare in terms of durability and mileage?
A: Both tires feature a tread wear indicator that helps gauge when its time to replace them due to wear. The compound composition of each tire also helps determine its durability and mileage, with the 275 65r18 having a softer compound composition than the 255 70r18.

Q: What is the cost difference between these two tire sizes?
A: Generally, there will be some difference in prices depending on where you purchase them from. On average, however, you can expect to pay more for the larger size (275 65r18) than you would for the smaller size (255 70r 18). Additionally, fitting costs may vary depending on where you have your tires fitted.

The 275 65R18 and 255 70R18 tires are both great options for drivers looking for a quality tire. The 275 65R18 provides a larger contact patch with the road, which delivers better handling and braking capabilities. However, the 255 70R18 is slightly more affordable and provides better fuel economy due to its lower rolling resistance. Ultimately, the choice between these two tires will come down to personal preference and the type of vehicle being used.