Tire Size 185/65r15 vs 195/65r15
The main difference between 185/65r15 and 195/65r15 tire sizes lies in the section width. But how do the differences in their specifications translate into performance and user experience? Let’s delve in to explore more.
185/65r15 vs 195/65r15 Table
The chart will help you to understand the differences between these two tire sizes and help you to decide which one is best for your vehicle.
The diameter of the 185/65r15 tire is approximately 24.47 inches (621.5 mm), whereas the 195/65r15 tire’s diameter is about 24.98 inches (634.5 mm), indicating a 2.1% difference. This increased diameter in the 195/65r15 tire results in more ground clearance, proving beneficial for off-road drives or rough terrains. However, the height increase may result in a lower speedometer reading.
Conversely, the lower diameter of the 185/65r15 may cause scraping or potential vehicle damage on obstacles or rough roads due to reduced ground clearance. The decrease in height, though, would give a higher speedometer reading.
The section width for the 185/65r15 is around 7.28 inches (185 mm), and for the 195/65r15, it’s about 7.68 inches (195 mm), marking a 5.4% difference. The wider tread width of the 195/65r15 provides improved traction due to a larger contact patch.
However, it may produce more road noise due to the expanded contact area. On the other hand, the 185/65r15 tire’s narrower width might reduce the tire’s grip, especially in wet or slippery conditions due to less surface area contacting the road.
The circumference of the 185/65r15 tire is approximately 76.87 inches (1952.5 mm) compared to the 78.48 inches (1993.34 mm) of the 195/65r15 tire, showing a 2.1% difference. The increased circumference of the 195/65r15 tire results in lower speedometer readings, while the decreased circumference of the 185/65r15 tire will provide higher speedometer readings.
The sidewall height of the 185/65r15 tire is about 4.73 inches (120.25 mm), while the 195/65r15 tire has a height of approximately 4.99 inches (126.75 mm), marking a 5.4% difference. The 195/65r15 tire’s taller sidewall serves as a buffer, absorbing more road irregularities, which translates into a smoother ride.
Furthermore, the increased sidewall height enhances traction on snowy or icy roads. In contrast, the 185/65r15 tire’s shorter sidewall might lead to a harsher ride due to less cushioning. However, its smaller sidewalls could lend a sportier, more aggressive appearance.
Revolutions Per Mile
The 185/65r15 tire turns around 824.25 times per mile (512.16 per km), while the 195/65r15 tire makes approximately 807.36 revolutions per mile (501.67 per km), meaning a 2% decrease. Higher RPM in the 185/65r15 tire signifies more wear due to increased friction with the road surface, leading to a potentially shorter lifespan.
However, the decreased revolutions per mile in the 195/65r15 tire mean it covers less distance per rotation, possibly extending its lifespan due to reduced wear and tear.
The wheel size for both the 185/65r15 and 195/65r15 is the same, 15 inches, but they have different recommended rim width ranges. The 185/65r15 tire suits a rim width range of 5.0-6.5 inches, while the 195/65r15 tire is compatible with a rim width range of 5.5-7.0 inches.
Larger rims, suitable for the 195/65r15 tire, often give a more aggressive, sporty look. In contrast, smaller rims that fit the 185/65r15 tire can present a more classic or conservative appearance.
Both tires are of the Radial type, the “R” in 185/65R15 and 195/65R15 denotes the construction type, offering superior heat dissipation and fuel efficiency compared to their Bias counterparts.
How much taller is a 185/65r15 tire than a 195/65r15?
The height of a 185/65r15 tire is 24.47 inches (621.5 mm), while the height of a 195/65r15 tire is 24.98 inches (634.5 mm). Therefore, the 195/65r15 tire is approximately 0.51 inches (or 13 mm) taller than the 185/65r15 tire.
How much wider is a 185/65r15 tire than a 195/65r15?
The width of a 185/65r15 tire is 7.28 inches (185 mm), while the width of a 195/65r15 tire is 7.68 inches (195 mm). Therefore, the 195/65r15 tire is approximately 0.39 inches (or 10 mm) wider than the 185/65r15 tire.
Can I use 185/65r15 instead of 195/65r15?
Typically, using tires that differ in diameter by more than 3% compared to the original tires is not advised. The overall diameter of a 195/65r15 tire size is 24.98 inches.
Whereas the 185/65r15 tire size has an overall diameter of 24.47 inches. When you calculate the difference between these two tire sizes, it comes out to approximately 0.51 inches or about 2.1%.
Since this is less than the recommended 3% difference, using a 185/65r15 tire instead of a 195/65r15 should be feasible. Always consult with a tire or vehicle professional before making such changes to ensure safety and performance.
Can I put a 185/65r15 on a 195/65r15?
Both the 185/65r15 and 195/65r15 tires can be mounted on a 15-inch rim. These tire sizes’ suggested rim width range is 15″ x 5.0-6.5″ and 15″ x 5.5-7.0″ respectively. This indicates that it would be possible to put a 185/65r15 tire on a rim designed for a 195/65r15, as the ranges overlap.
When choosing between the 185/65r15 and the 195/65r15 tire sizes, it’s crucial to consider your driving conditions and vehicle performance expectations. The 195/65r15’s larger dimensions make it a better choice for off-roading and smoother rides, albeit at the cost of increased road noise and potential speedometer discrepancies.
On the other hand, the 185/65r15 tire offers a higher speedometer reading and a sportier appearance due to its smaller dimensions. Still, it could compromise on traction and ride smoothness, especially in challenging road conditions.
Your tire choice between 185/65r15 and 195/65r15 should depend on your personal driving conditions, style, and vehicle compatibility. Consult with a professional or your vehicle’s manufacturer to make an informed decision.