Often asked: What Does The Middle Number On A Tire Mean?

Can I use 60 instead of 65 tires?

Physically, yes they will fit. It is recommended to stay within 3% of the original tire size on the car though. The size you have is 3.09% smaller, so not recommended. You could go with 205/60-15 though if you can get a better deal on that size.

What do the last 3 numbers on a tire mean?

B: TIRE WIDTH The three-digit number following the letter is the tire’s width (from side to side, looking at the tire head on) in millimeters. This may also be referred to as the section width. In this example, the aspect ratio is 65, meaning the sidewall is 65 percent as high as the tire is wide.

What does the first 3 numbers on a tire mean?

The first three-digits refer to the Tire Width. The Tire Width is a measurement of the tire, sidewall to sidewall, in millimeters. In our example, the Tire Width is 205mm. After the slash is a two-digit number, which dictates the Aspect Ratio.

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What’s the difference between 60 and 65 on tires?

The 65% aspect ratio (as in 235/65/17), compared to 60%, adds almost 12 mm (1/2″) to the radius of the tire (0.65-0.60)*(235mm)=11.75mm.

Which tire is wider a 65 or 70?

The series number in a tire-numbering system refers to the aspect ratio of the tire’s sidewall height to its width. A series 65 tire’s height is 65 percent of its width, a series 70 tire’s height is 70 percent of its width and so on. These differences in height affect both performance and safety issues while driving.

Can I use 235 tires instead of 225?

Are 225 and 235 Tires Interchangeable? Yes, they are. However, this is only possible if your car’s rims can accept the larger millimeter.

What does the last number on a tire mean?

Tire Diameter or Size: 215/65 R15 The very last number in the sequence, “15, ” is the diameter of the tire. This is an important number—this is the number you’ll refer to when you need to know your tire size! The “15” indicates that this particular tire would fit a rim with a 15-inch diameter.

Can I use 225 tires instead of 215?

Yes, you can. But only if the rims on your car can accommodate tires that are 10-20 millimeters wider. Bear in mind that wider wheels require more fuel due to their increased rolling resistance. Again, wider tires are more costly than narrower ones because they need more rubber during construction.

What number makes a tire taller?

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.

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Are wider tires better?

Larger tires improve handling and cornering, due to wider tread faces and stiffer sidewalls. Wider tires may also increase acceleration, especially in very powerful vehicles such as muscle cars. Larger wheels with lower profile tires are sometimes aesthetically desirable.

How do I know the size of my tires?

Find the information in your vehicle owner’s manual in the glove compartment or on the tire information sticker on your driver’s side door. Usually those elements contain all the information related to your tire size and specifications as well as the appropriate tire pressure.

How much taller is a 70 tire than a 60?

The series is a % of the sidewall compaired to the width. A 70 series tire sidewall height is 70 % of the tires tread width, a 60 series tire has a sidewall hight of 60% of the tires tread width.

Can I use 55 tires instead of 60?

Yes the wheel/tire combo has an overall diameter/circumference that should be maintained with 3% (+/-) the original spec. When you plus size wheelsthe aspect ratio (height of the tire) decreases to compensateand maintain the orig diameter/circumference.

What is the 60 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.

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