What does the 55 mean in 275 55R20?

55. This number means that your tire has an aspect ratio of 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width. In this case, the sidewall height is 0 millimeters.

What does the 55 on my tire mean?

The “55” grouping is the aspect ratio and is by far one of the most misunderstood dimensions. This is the height of the sidewall from wheel to tread relative to the width. Manufacturer's represent this measurement in a percentage, so in our example, the sidewall is 129.25 millimeters — 5.08 inches — tall (235 x 0.55).

What does 275 55 mean on a tire?

The tire is a (P) passenger tire, with a tread width of 275 millimeters, the sidewall is 55% as tall as the tread (section width) is wide, and the wheel diameter is 20 inches.

What size is 275 55 r20?

When converted to inches, 275/55R20 is equivalent to 31.9x10. 8R20. 275/55R20 tire has a section width of 10.8 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 20 inches represents the size of the wheel the tire can be mounted on.

What does 275 tire size mean?

The numbers in the tire size refer to its width, aspect ratio, and wheel diameter. "275/35R19" means the tire is 275 mm wide, has an aspect ratio (that is, the width divided by the height) of 35%, and fits on a 19" wheel.

245 vs 275 tires

What does 275 55 r20 mean on tires?

This number means that your tire has an aspect ratio of 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width.

What does 275 55R20 mean in inches?

275/55R20. Diameter : 31.9" Width : 10.8" Wheel : 20" x 7.5-9.5" Sidewall : 6.0"

What does the R mean in tire sizes?

“R” stands for the construction method of the tire indicating the tire is a radial tire. The following two numbers (16) indicate the diameter of the wheel rim in inches. The next two or three numbers (94) indicate the load index of the tire. In the example, 94 means the tire can carry 670kg.

What size is 305 55R20?

305/55R20 tires are 33.2″ tall, have a section width of 12.0″, and fit wheels with a diameter of 20. The circumference is 104.3″ that translates into 608 revolutions per mile. As a rule, they can be mounted on the wheels with 20″ x 8.5-11″ rim width.

What do the 3 numbers mean on tire size?

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. C: ASPECT RATIO The forward slash separates the tire width number from the two-digit aspect ratio.

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.

How tall is a 285 55R20 tire?

What is 285/55R20 tire sidewall height? 285/55R20 tire has a sidewall height of 6.2 inches or 157 mm which is the measurement of tire sidewall from the wheel rim to the top of tire tread.

What is the difference between 50 and 55 on tires?

The 50 (or 55) is the height of the sidewall, as a percentage of the width. That's your aspect ratio. With a 55 aspect ratio, and a 225 treadwidth, you'll end up with a tire that is 3/4 of an inch taller that the 225/50.

What does V mean on a tire?

SPEED RATING V

Once the highest speed rating a tire could have, “V” used to represent a maximum of 149 mph (240 kph) or more. Nowadays, it means 149 mph but no higher.

Can I use V-rated tires instead of H?

A V-rated car requires a tire designed to operate to a maximum of 149 mph and can thus not be fitted with an H-rated tire. The speed rating system was developed to control the safe speeds at which tires must still perform as per the intended design.

What size tire is 295 55R20?

The 295/55R20 Nitto Ridge Grappler has a diameter of 32.76", a width of 12.17", mounts on a 20" rim and has 634 revolutions per mile.

Which tire is bigger 305 or 35?

If you have a 305/55-R20 tire, you're working with a 33-inch diameter product that comes with a tread width of approximately 12 inches. When you install a 35/12.5-R20 tire on a vehicle, the product is 35 inches wide and has a tread width of 12.5 inches.

What does the LT mean on a tire?

If a tire size reads, LT235/75R15 104/101S, the LT indicates that this tire is meant for Light Truck use. These tires are made for light-duty and heavy-duty pickup trucks (typically ½ ton, ¾ ton, or 1-ton load capacity), SUVs and vans.

What does the P mean in tire size?

P identifies your tire as a Passenger Tire. The P stands for PMetric. If your tire size starts with LT rather than a P than it identifies the tire as a Light Truck tire. 225 identifies the tire section width, which is the measurement of the tire from sidewall to sidewall in millimeters.

What does H mean on a tire?

“H” represents the speed rating, which is how fast the tires can go based on their load capacity. This rating ranges from A – Z. “H” indicates a speed rating of up to 130 mph.

How tall is a 285 45R22?

285/45R22 tire has an overall diameter of 32.1 inches or 815 mm that represents the outer diameter of the tire or tire height.