what’s the differences between 285 70r17 and 315 70r17 tires?

There are a lot of factors that you have to consider while trying to choose the next tire for your vehicle. For 285 70r17 vs 315 70r17 tires, there are slight factors that influence great differences between the two tires. 

285 70r17 and 315 70r17 tires have the same aspect ratio, radial tire construction, and rim width. The main difference between both tires is their tire width. 285 70r17 has a tire width of 285 millimeters (11.22”) while 315 70r17 has a tire width of 315 millimeters (12.4”).

As little as these differences may seem, they influence the overall features of the tire. You will have to consider the sidewall height, circumference, revolution per mile, and diameter. These will not only impact the performance of the tire and its compatibility with different vehicles but also your speedometer readings.

Here’s a detailed comparison between 285 70r17 and 315 70r17 to help you select the best one for you.

What size tire is 285 70r17?

285 70r17 is a 32.7-inch tire. The 285 70r17 has an overall circumference of 102.76 inches and a tire diameter of 32.71 inches. These tires are built for 17-inch wheels with a rim width range of 7.5 – 9.5 inches. The tire width is 11.22, achieving a revolution per mile of 616.6 km.

What size tire is 315 70r17?

315 70r17 is a 34.36-inch tire. The 315 70r17 has an overall circumference of 107.95 inches and a tire diameter of 34.36 inches. These tires are built for 17-inch wheels with a rim width range of 8 – 10.5 inches. The tire width is 12.4, achieving a revolution per mile of 586.93 km.

What does the 285 70r17 mean on a tire size?

Ever wondered what the 285 means on a tire size? Just as the other letters and numbers on tire sidewalls mean? Here’s a chart to explain what they mean

P or LTP or LT refers to the class of the tire. Tires inscribed with P (P-metric) are passenger tires.  LT which is an acronym for “Light Truck”, are tires that are for carrying heavy loads.
285 70r17 is an LT tire.
285285 is the width of the tire, in millimeters.
70The aspect ratio is the next number on your tire’s sidewall after the tire’s width. Aspect ratio is the ratio of the height of the tire’s sidewall against its width, in percentage.
285/65r20 has an aspect ratio of 70%. This gives it a sidewall height of 199.5 millimeters or 7.854 inches.
RR explains the construction structure of the tire. 285 70r17 is a Radial tire.
1717 is the Wheel/Rim Diameter. 285 70r17 fits 17-inch rims, with a rim width range of 17″ x 7.5-9.5.”

What does the 315 70r17 mean on a tire size?

P or LTP or LT refers to the class of the tire. Tires inscribed with P (P-metric) are passenger tires.  LT which is an acronym for “Light Truck”, are tires that are for carrying heavy loads.
315 70r17 is an LT tire.
315315 is the width of the tire, in millimeters.
70The aspect ratio is the next number on your tire’s sidewall after the tire’s width. Aspect ratio is the ratio of the height of the tire’s sidewall against its width, in percentage.
315 70r17 shares the same aspect ratio of 70% as 285/65r20. This gives it a sidewall height of 199.5 millimeters or 7.854 inches.
RR explains the construction structure of the tire. 315 70r17 is a Radial tire.
1717 is the Wheel/Rim Diameter. 315 70r17 has the same wheel/rim diameter as 285 70r17. It is for 17-inch rims, with a rim width range of 17″ x 8–10.5”

285 70r17 vs 315 70r17 tires: (key differences )

Features285 70r17315 70r17
DiameterThe tire diameter of 285 70r17 has 32.71 inches.315 70r17 has a tire diameter of 34.36”. 315 70r17 have a larger diameter than 285 70r17 tires with 1.65 inches. This gives them a much larger frame.
Width285 70r17 has a tire width of 11.22 inches. This is smaller than the 315 70r17 tire’s width315 70r17 has a larger tire width of 12.4 inches. This is 1.18 bigger than 285 70r17 tires.
Sidewall Height285 70r17 has a sidewall height of 7.85 inches.315 70r17 has a sidewall height of 8.68 inches. 315 70r17 is 0.83 inches bigger than 285 70r17.
Circumference285 70r17 has a circumference of 102.76 inches. 285 70r17 tires have a smaller tire than 315 70r17.315 70r17 tires have a circumference of 107.95 inches. This is 5.19 inches bigger than 285 70r17.
Rev per mile616.6 km586.93km
Aspect Ratio70%70%
Rim Size17″ x 7.5-9.5.”17″ x 8–10.5”
  1. Construction Type

Different tires have different construction structures. They are either Radial or biased. Radial tires provide a better advantage at heat dissipation because they are made of steel belts that run at a 90-degree angle across the center of the tread line. 

This makes it possible for Radial tires to travel faster for a long distance. 285 70r17 and 315 70r17 tires are radial tires. They also have the benefits of improved tread wear, durability, and resistance against flat spots after parking.

  1. Tire Diameter

The diameter of a tire impacts the fuel economy of your vehicle, performance, acceleration, gearing, handling, stability, and even calibration and speedometer readings. Bigger tires provide better stability but reduce your fuel economy. 

285 70r17 and 315 70r17 are good sizes for light trucks, but you should consider 315 70r17 a better option for off-road driving. 285 70r17 provides a better balance, durability, and performance. 

  1. Aspect Ratio

Your tire’s aspect ratio plays a direct role in its steering ability and stability. It can also indicate the preferred vehicle for your tires. 285 70r17 and 315 70r17 have the same aspect ratio, so they will achieve almost the same steering response.

  1. Tire Width

Tire width affects the price and more importantly, the grip of the tire on the road. A wider tire covers more surface area and has more grip. Unfortunately, it will be more expensive. The 285 70r17 has a lesser tire width and is also cheaper than the 315 70r17.

people also ask (FAQs)

How tall is a 285 70r17 tire?

285 70r17 tires are 32.71 inches tall.

How tall is a 315 70r17 tire?

315 70r17 are 34.36 inches tall.

What rims will fit 285 70r17 tires?

 285 70r17 tires will fit into 17 x 7.5-9.5 rims.

What rims will fit 315 70r17 tires?

315 70r17 tires will fit into 17″ x 8–10.5” rims.

Verdict

Tire width is not the only notable difference between 285 70r17 and 315 70r17. 285 70r17 has a smaller diameter, width, and circumference. Both tires have the same aspect ratio, but 315 70r17 is a good choice for off-road driving.

The broad size of 315 70r17 tires will look good on your truck wheels, but if you need something cheaper that will provide a similar function, then you should stick with 285 70r17.

You must ensure that they match your vehicle’s specifications.

Who Worked on This?

Rafayel

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Baron

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