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.
How are tire sizes determined?
Measured across the center of the tire from one end to the other , wheel size refers to the diameter of your wheel and is typically measured in inches. Overall wheel size is often indicated by the rim diameter as a shorthand for what size tire your vehicle needs.
What is the difference between 265 and 275 tires?
Width is the first digit of the tire size index. As you can see the first number of one tire is 265 and the other is 275. This means that the width of the tire 265 70R17 is 265 millimeters and the tire 275 70R17 is 275 millimeters. So the difference in their width is 275 – 265 = 10 millimeters .
Can I use 245 tires instead of 235?
The quick answer is yes you can replace 245/50-18 tyres with 235/50-18 but they will have 10mm (0.4 in) smaller overall diameter. Will only slightly effect speedo and odometer – ie speedo will read about 1.5% high.
What does the 113s mean on tires?
113 is the load rating, it means the tires can handle up to 2535 lbs . S is the speed index, which means the tires can go up to a speed of 112 mph.
What is P265?
Let’s take for example P265/60R18. This code gives you the following information about your vehicle’s tire: P = Passenger Tire (Light Truck Tires will begin with the prefix LT). 265 = Section Width in millimeters (measured at the widest part of the tire from sidewall to sidewall)
Can I use 235 tires instead of 225?
235 tires are one of the strongest, most durable, and reliable tires available for sub-heavy vehicles. 235 tires are also preferred over 225 tires for professional stunting because they offer much more stability to the vehicle and hence are much safer .
What does 50r mean on tires?
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. R stands for radial construction .
How wide is a 245 tire in inches?
| Size, MM Width, Inches Sidewall height (from rim bead seat to top of tread) × 2. | 240 mm 9.45” 10.40” | 245 mm 9.65” 10.62” | 250 mm 9.84” 10.82” | 255 mm 10.04” 11.04” |
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How much taller is a 285 tire than a 275?
In essence, you can use the 285 tire with the 275 rim without any complaints. Furthermore, they have the same tread patterns, only that one is slightly taller than the other. The 275 tire is about 0.55 inches or 15 mm smaller than the 285 tire and their speedometer difference is also about 1.7 percent too.
How much taller is a 285 tire than a 265?
It means the width of one tire is 265 millimeters while the other one is 285 millimeters wide. Thus, there is a difference of 285 – 265 = 20 millimeters in their width.
What is the difference between a 65 and a 70 tire?
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.
Do wider tires handle better?
Wider tires have an increased risk of hydroplaning on slippery or wet surfaces, but they generally provide better grip for dry surfaces .
Are 245 tires wide?
245: The width of the tire, from sidewall to sidewall, in millimeters. A 245 is 245 millimeters, or 24.5 centimeters, wide . The tread width is actually somewhat smaller than the tire’s actual width. 45: Aspect Ratio.
What does p245 75R16 mean?
This number indicates that your tire has a width of 245 millimeters . 75. This number means that your tire has an aspect ratio of 75%. In other words, your tire’s sidewall height (from the edge of the rim to the tire’s tread) is 75% of the width.
What does 70R17 mean?
How to read your tire size long description. An arrow points to the numbers 265/70R17 115T on the inner part of the tire sidewall. 265 is the width, 70 is the aspect ratio, R stands for radial, 17 is the wheel diameter and 115T is the load index and speed symbol.
What does 120 116r mean on a tire?
Light Truck Tire Load Index
This is because light truck tires are often used on vehicles with dual rear wheels. For example, a light truck tire with a load index of 120/116 means a load capacity for a single tire of 3,086 pounds and a load capacity of 2,756 pounds for two tires .
What is 109 s tire?
| LOAD INDEX | L.I.# Load, lb | 103 1929 | 109 2271 | 116 2756 |
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What is a 115T tire?
The 115T signifies that the tire has a 4ply standard load sidewall . The 121S signifies a 10 ply load range E sidewall. The standard load tire is best for a half ton truck, whereas the load range E sidewall is best for a 3/4 and 1 ton truck.
What does 112s mean on a tire?
An S speed rating indicates the tire has been approved for speeds up to 112 mph (180 km/h) under optimal conditions .
What is 110t tire?
The load rating on car and light truck tires ranges from 70 to 110. A tire with a load rating of 70 can carry 761 pounds, while a 110 rating has a load capacity of 2,337 pounds . A tire with a 101H load and speed index is rated for a maximum load carrying capacity of 1,819 pounds.
How much taller is a 235 tire than a 215?
Tire size. The tire size is the width in millimeters from the edge of one sidewall to the edge of the other sidewall. Therefore, a 235 tire is 20 millimeters wider than a 215 tire.
Do bigger tires give a smoother ride?
Avoid bigger wheels if you want a smoother ride.
As a general rule, bigger wheels result in a rougher ride. Switching to a smaller wheel and a thicker tire can give you a smoother ride without any major modifications to your car .
Is a 70 or 75 tire wider?
The sidewall of a 70-series tire will be 70% of the width, a 75 series will be 75% of the width . If you want the same HEIGHT in a 70 series, then you need to go wider in the width — about 219.
What does 98H mean on a tire?
Hurry Up and Weight
The load index and speed ratings are grouped together , denoted, for example, as 98H. The load index is a number that generally ranges from 75 to 105; the higher the number, the more weight the tire can support.
What does 98w mean on a tire?
The letter W denotes the maximum speed rating, which translates 168 mph —not something intended for mom’s minivan. See our list of speed ratings below, which range from a low of “L” (just 75 mph for some off-road tires) to a high of Y (186 mph).
What does 91T mean on a tire?
The 91H and 91T refer to the tire Load bearing index and speed rating of the tire . (Load Index 91 refers to 1356 Pounds or 615 Kilograms). Typically, the load indexes of the tires used on passenger cars and light trucks range from 70 to 110. The H and T refer to the speed rating of the tire.
