Tire Size 245/75r17 in inches
This article will delve into the specifics of one such size, the 245/75r17, to elucidate its dimensions, relevant specifications, and overall compatibility with different vehicles. For reference, the tire size 245/75r17 is equivalent to 31.5×9.6R17 in inches.
245/75r17 in inches
To better understand the breakdown of tire features and metrics, consult the following table which presents comprehensive information.
| Feature | Metric | Inches |
|---|---|---|
| Tire Height | 800 mm | 31.5″ |
| Tread Width | 245 mm | 9.6″ |
| Rim Diameter | 431.8 mm | 17″ |
| Sidewall Height | 184 mm | 7.2″ |
| Circumference | 2512 mm | 98.9″ |
| Revolutions | 398 per km | 641 per mile |
What Size Is A 245/75r17?
Let’s start by breaking down what the tire size means. The number ‘245’ represents the tread width in millimeters, ’75’ is the aspect ratio indicating the height of the tire’s sidewall as a percentage of the tread width, ‘R’ stands for radial construction, and ’17’ represents the wheel diameter in inches.
Replacement Tire Size
It is imperative to select replacement tires that maintain an overall diameter within a 3% range of the original 245/75r17 tire size.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 235/75R17 | 30.9″ (784 mm) | -2% |
| 275/65R17 | 31.1″ (790 mm) | -1.3% |
| 255/70R17 | 31.1″ (790 mm) | -1.3% |
| 285/65R17 | 31.6″ (802 mm) | 0.2% |
| 265/70R17 | 31.7″ (804 mm) | 0.5% |
| 345/55R17 | 32″ (812 mm) | 1.5% |
| 255/75R17 | 32″ (814 mm) | 1.8% |
| 275/70R17 | 32.2″ (818 mm) | 2.3% |
Overall Diameter
In terms of dimensions, the 245/75r17 tire size offers an overall diameter, or tire height, of 800 mm or 31.5 inches. This critical measurement impacts the vehicle’s ground clearance, stability, and overall ride quality.
Tread Width
The tread width of this tire size is 245 mm or approximately 9.6 inches. The width of the tread influences the tire’s grip on the road, fuel economy, and noise levels.
Rim Size
The rim diameter for this particular tire size is 431.8 mm or 17 inches. This dimension is important for compatibility purposes – ensuring the tire fits the wheel properly. The sidewall height is approximately 184 mm or 7.2 inches, affecting the vehicle’s comfort level and handling ability.
Circumference
The tire’s circumference measures at 2512 mm or 98.9 inches. This measurement affects the vehicle’s speedometer reading and overall speed regulation. Regarding revolutions, the 245/75r17 tire completes 398 revolutions per kilometer or 641 per mile, a factor that can impact fuel efficiency.
Tire Construction
Understanding the ‘R’ in the tire size is also important. This letter signifies the tire’s construction type, which is ‘Radial.’ Radial construction means the tire’s internal ply cords are oriented in a radial direction, from one bead over to the other, across the tire. Radial tires are known for their durability, traction, and ability to provide a comfortable ride.
Height Of 245/75r17
The height of a 245/75R17 tire, also known as the overall diameter or tire height, is 800 mm or 31.5 inches. This is calculated by using the aspect ratio (the ’75’ in 245/75R17), which represents the height of the tire’s sidewall as a percentage of the tread width.
In this case, the sidewall height is 75% of the 245 mm tread width, equating to approximately 184 mm or 7.2 inches. However, since a tire’s height includes the sidewall height twice (once at the top and once at the bottom) plus the rim diameter (17 inches or 431.8 mm), the overall diameter or height of a 245/75R17 tire becomes 800 mm or 31.5 inches.
How Is Tall 245/75r17?
The overall diameter of a tire can be calculated by adding the height of two sidewalls (since there’s one on each side of the tire) to the diameter of the rim. We’ll use the tire size “245/75R17” to perform the calculation.
So the height of one sidewall = (245mm * 75%) / 25.4 (to convert from mm to inches) = 7.28 inches approximately. The overall diameter = rim diameter + (2 * sidewall height) = 17 inches + 2 * 7.28 inches = 31.56 inches approximately. So, the overall diameter of a 245/75R17 tire is approximately 31.56 inches.
Our Observation
The 245/75r17 tire size offers a balanced blend of comfort, durability, and performance, making it an attractive option for vehicle owners. Its substantial overall diameter provides ample ground clearance, suitable for off-road driving or larger vehicles like SUVs and trucks.
The 9.6-inch tread width ensures a steady grip on the road, contributing to safety and performance. Its sidewall height of 7.2 inches offers a comfortable ride, absorbing road shocks effectively. With a 17-inch rim diameter, these tires are compatible with various vehicle models.
The radial construction enhances the tire’s lifespan and overall driving comfort, while its revolutions per mile speak to a potential for greater fuel efficiency.
- 245/75r17 vs 265/70r17
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Meet Caitlin McCormack, a Tire Size Expert and Blogger Passionate About Everything Related to Tires. With Years of Experience in the Tire Industry, Caitlin Has Become an Expert in Tire Sizes and Their Impact on Vehicle Performance.
