Tire Size 345/40r17 in inches

The tire size 345/40R17 is equivalent to 27.9×13.6R17 in inches, has a diameter of 27.9 inches (707.8 mm), a section width of 13.6 inches (345 mm), a wheel diameter of 17 inches (432 mm), and is approved to be mounted on 11.5 – 13.5 inches (292.1 – 342.9 mm) wide wheels. This tire size, usually used on high-performance vehicles, is designed to provide optimal grip, ride comfort, and safety.

345/40r17 in inches

FeatureInchesMetric
Tire Diameter27.9707.8
Section Width13.6345
Rim Height17432
Sidewall Height5.4138
Circumference87.52223.6
Revolutions450 per km723 per mile
Rim Width Range11.5 – 13.5292.1 – 342.9

How Tall Is A 345/40R17 Tire?

The tire height of the 345/40R17 tire size is 27.9 inches or 707.8 mm. This measurement, known as the tire’s overall diameter, is the total height of the tire when inflated and unloaded. It is an essential factor when considering the clearance and fitment of the vehicle.

What Is the 345/40R17 Width In Inches?

The tread width of the 345/40R17 tire size is 13.6 inches or 345 mm. This is the distance from one side of the tire’s tread to the other. It is a crucial measurement that affects the vehicle’s handling, traction, and overall driving experience.

What Is the 345/40R17 Sidewall Height?

The 345/40R17 tire’s sidewall height is 5.4 inches or approximately 138 mm. This measurement is calculated as a percentage (the aspect ratio) of the section width. A lower aspect ratio usually means better steering response and cornering ability, while a higher aspect ratio can mean better comfort and ride quality.

What Is the 345/40R17 Tire Circumference?

The circumference of the 345/40R17 tire size is 87.5 inches or 2223.6 mm. This is the distance around the outer edge of the tire. The circumference affects the tire’s revolutions per mile and the speedometer calibration.

What Is the 345/40R17 Revolutions Per Mile?

For the 345/40R17 tire size, there are about 723 revolutions per mile or 450 revolutions per kilometer. This specification is crucial for calibrating the vehicle’s speedometer and odometer.

What Is the 345/40R17 Rims Size?

The 345/40R17 tire size, the rim diameter is 17 inches or 432 mm. Moreover, it can be mounted on rims with a width range of 11.5 – 13.5 inches (292.1 – 342.9 mm).

Fitment Guide
This will guide you on which vehicles can accommodate 345/40R17 tires. It is important to remember that the manufacturer’s recommended tire size for your vehicle is always the best choice for safety and performance. Always consult your vehicle’s manual or a tire professional when choosing new tires.

Replacement Tire Size
Replacement tires have to be within 3% of the height and width of the original tires. It is to maintain the functionality of the speedometer, traction control, torque, and overall tire performance.

Tire SizeOverall DiameterDifference
255/50R1727.1″-2.80%
235/55R1727.2″-2.50%
215/60R1727.2″-2.50%
145/90R1727.3″-2.00%
165/80R1727.4″-1.70%
295/45R1727.5″-1.40%
205/65R1727.5″-1.40%
225/60R1727.6″-0.80%
245/55R1727.6″-0.80%
275/50R1727.9″0.00%
255/55R1728.0″0.60%
215/65R1728.0″0.60%
155/90R1728.0″0.60%
315/45R1728.2″1.10%
225/65R1728.5″2.30%
265/55R1728.5″2.30%
245/60R1728.6″2.50%

Our Observation
In our observation, the 345/40R17 tires are often found on sports cars and high-performance vehicles. Their wide section width provides excellent road grip, while their lower sidewall height enhances vehicle responsiveness and stability.

However, these tires might provide a less comfortable ride due to their lower aspect ratio. Always consider your driving conditions and preferences when choosing your tires.

These high-performance tires could be an excellent choice for those who value speed, control, and agility in their driving experience.

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