- What does the middle number on a tire mean?
- Is a 55 or 60 tire wider?
- Are 50 tires wider than 55?
- Are Bigger tires harder on transmission?
- Does the middle number on tires matter?
- What does the 60 mean in tire size?
- Can I use 235 tires instead of 225?
- What does 70 R mean in tire size?
- What does the 50 mean in tire size?
- Can I put wider tires on my stock rims?
- Can I put different size tires on my car?
- Which tire is wider a 70 or 75?
- How far off is my odometer with bigger tires?
- What numbers matter when buying tires?
- Is a 60 series tire wider than a 70 series?
- What does the 55 mean in tire size?
- Is 55 a low profile tire?
- Will 35 inch tires ruin my transmission?

## What does the middle number on a tire mean?

The “235” grouping indicates the width of the tire from sidewall to sidewall in millimeters.

So, in this example, the tire is 235 millimeters — 9.25 inches — wide from sidewall to sidewall.

…

The final number group, the “18,” is the size of wheel the tire fits.

In our example size, the tire will fit a 18-inch wheel..

## Is a 55 or 60 tire wider?

225mm (tire width) times 55% (aspect ratio) = 123.75mm (sidewall height). Rolling diameter = 16″ (406.40mm) plus 123.75 times 2 = 653.90mm or 25.744″. 205/60/16’s a tad over half an inch smaller rolling diameter than the 225/55/16’s.

## Are 50 tires wider than 55?

Not 5mm difference, 7.5mm if it matters to you. The “50 or 55” is the aspect ratio between width and sidewall not a direct measurement.

## Are Bigger tires harder on transmission?

Increasing Tire Size Will Reduce Your Vehicle’s Effective Gear Ratio. The increased size causes the tires to rotate slower to cover the same amount of ground. … If you are running an automotive transmission this can cause some serious strain depending on the current gear ratio if you choose not to regear your system.

## Does the middle number on tires matter?

The 50 indicates that this tire size’s sidewall height (from rim to tread) is 50% of its section width. The measurement is the tire’s section height, and also referred to as the tire’s series, profile or aspect ratio. The higher the number, the taller the sidewall; the lower the number, the lower the sidewall.

## What does the 60 mean in tire size?

60 is the two-figure aspect ratio. This percentage compares the tire’s section height with the tire’s section width. For example, this aspect ratio of 60 means that the tire’s section height is 60% of the tire’s section width. R indicates the construction used within the tires casing. R stands for radial construction.

## Can I use 235 tires instead of 225?

Obviously, you will need a certain kind of tire depending on how you use your vehicle. Due to this, a 235 tire might not be better than a 225 tire, or vice versa, but depending on your situation, one tire might serve you better than the other.

## What does 70 R mean in tire size?

The number 235 is the cross-section width in millimeters, while 70 is the ratio of sidewall height to cross-section width (70 percent). R means radial-ply construction and 16 is the wheel diameter, in inches. Load index. This number is based on the weight the tire can safely carry.

## What does the 50 mean in tire size?

50 is the two-figure aspect ratio. This percentage compares the tire’s section height with the tire’s section width. For example, this aspect ratio of 50 means that the tire’s section height is 50% of the tire’s section width. R indicates the construction used within the tires casing.

## Can I put wider tires on my stock rims?

To keep the suspension and speedometer functioning correctly, both the stock diameter and width of the wheels and tires needs to be maintained. As a general rule of thumb, it’s safe to fit a tire up to 20 millimeters wider than stock on the original rim.

## Can I put different size tires on my car?

It’s possible to change the size of your tires without actually changing the diameter. … Generally, you don’t want to go with tires that have a diameter that is more than 3% different from the factory tires. It’s also a good idea to consult with a trusted mechanic before switching to larger or smaller tires.

## Which tire is wider a 70 or 75?

a 215 will be a little wider and a little shorter, while a 225 will be even wider, and a little taller. 70 (or 75) is the ratio of the width to the sidewall height. So a 75 will be a taller tire, and closer to the height of the 6.70×15.

## How far off is my odometer with bigger tires?

Over the length of 1 mile, this adds up to 33.6 feet. After “actually” traveling 157 miles, the odometer will be “off” by 1 mile. It will read 158 miles. Smaller diameter tires will effect odometer reading more than larger tires.

## What numbers matter when buying tires?

The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P215/65 R15 tire, the 65 means that the height is equal to 65% of the tire’s width. The bigger the aspect ratio, the bigger the tire’s sidewall will be.

## Is a 60 series tire wider than a 70 series?

Generally speaking, a 215-60 series tire is wider and has a shorter sidewall then a 215-70 series tire would be and a 215-75 series tire would be taller and narrower then either the 70 series or the 60 series.

## What does the 55 mean in tire size?

Aspect Ratio The fourth and fifth digit, in this case ’55’, is located after the width digits. These show the height of the tyre as a percentage of the tyre width. In this case, the aspect ratio is ’55’, which therefore means that the height of the tyre is 55% of the tyre width.

## Is 55 a low profile tire?

Low profile tyres have a shorter sidewall or a lower aspect ratio than normal tyres. They also have larger tread blocks, a stiffer, wider apex and can be made from specialised compounds. Generally a tyre with a 50 aspect or less is considered to be low profile.

## Will 35 inch tires ruin my transmission?

Yes, switching to larger tires will put more stress on your tranny, IF you stick with the stock gears. If you regear to 4.56 or 4.88’s then that should take most of the stress off the tranny, and extend its life.