Tire Size 215/55r17 vs 215/50r17
Tire size changes can significantly affect your vehicle’s performance. Let’s explore the implications of switching from 215/55R17 to 215/50R17 tires, considering both benefits and drawbacks for everyday driving and off-road adventures.
- Overall tire diameter decreases by 0.85 inches
- Sidewall height reduces by 0.42 inches resulting in a sportier look
- Vehicle ground clearance lowers slightly affecting off-road capability
- Speedometer will read about 3.2% higher than actual speed
- Tire revolutions per mile increase by 25.48 potentially reducing fuel efficiency
215/55r17 vs 215/50r17 Table
The primary distinction between 215/55R17 and 215/50R17 tires lies in their overall diameter. The 215/50R17 is 0.85 inches (21.5 mm) smaller in diameter, representing a 3.2% decrease.
Fitment Guide
The 215/55R17 tire has a 3.2% larger diameter than the 215/50R17. This is within the 3% limit where tires can directly replace each other without fitment issues.
Larger deviations beyond 3% may require lift kits or other modifications to prevent rubbing. Both these 17 inch tire sizes should fit the same wheels and vehicles without issues.
On-Road Impact
The switch to 215/50R17 tires can affect your on-road driving experience in several ways. Let’s explore how these changes might impact your daily commute or highway travels.
- Speedometer Accuracy: With the smaller diameter, your vehicle will actually be traveling slower than what the speedometer indicates. At a displayed speed of 20 mph, your actual speed would be about 19.36 mph. This difference becomes more pronounced at higher speeds, potentially leading to unintended speeding.
- Gas Mileage: The smaller tire diameter means your engine will need to work slightly harder to cover the same distance. This could result in a minor decrease in fuel efficiency, though the difference may be negligible for most drivers.
- Ride Comfort: The lower profile of the 215/50R17 tire means less sidewall to absorb road imperfections. This might lead to a slightly firmer ride, especially on rough roads. However, the difference in comfort may not be noticeable to many drivers.
- Handling: The shorter sidewall of the 215/50R17 tire can provide improved responsiveness and cornering stability. This change might be appreciated by drivers who enjoy a sportier feel, but it could also make the ride feel slightly less plush.
Off-Road Impact
For those who occasionally venture off the beaten path, the tire change can have some implications. Here’s how the switch might affect your off-road adventures.
- Ground Clearance: The smaller overall diameter of the 215/50R17 tire will reduce your vehicle’s ground clearance by about 0.42 inches (10.75 mm). While this may seem minor, it could make a difference when navigating rough terrain or obstacles.
- Traction: The reduced sidewall height might slightly decrease the tire’s ability to deform and conform to uneven surfaces. This could potentially impact traction in some off-road situations, particularly in loose or rocky terrain.
- Durability: The lower profile of the 215/50R17 tire may be more susceptible to damage from rocks or other obstacles when off-roading. This could lead to an increased risk of punctures or sidewall damage in challenging conditions.
Aesthetics & Appearance
The switch to 215/50R17 tires will give your vehicle a slightly different look. The lower profile tires can create a sportier, more aggressive appearance. Some drivers prefer this look, as it can make the wheels appear larger and fill out the wheel wells more fully.
What is the Difference Between 215/55r17 and 215/50r17?
The main difference between 215/55R17 and 215/50R17 tires lies in their overall diameter. This 0.85-inch (21.5 mm) reduction in diameter represents a 3.2% decrease.
The change in sidewall height is even more pronounced, with the 215/50R17 having a 9.1% lower profile. This difference affects various aspects of the tire’s performance, including ride comfort, handling characteristics, and ground clearance.
Can I Use 215/50r17 Instead of 215/55r17?
Using 215/50R17 instead of 215/55R17 is not recommended without careful consideration. The 3.2% decrease in diameter slightly exceeds the generally accepted 3% threshold for tire size changes. While this difference is close to the limit, it may still impact your vehicle’s performance and safety.
How Much Taller Is a 215/55r17 Tire Than a 215/50r17?
A 215/55R17 tire is 0.85 inches (21.5 mm) taller than a 215/50R17 tire. This difference in height accounts for the 3.2% reduction in overall diameter when switching from 215/55R17 to 215/50R17.
Our Observation
Switching from 215/55R17 to 215/50R17 tires offers both benefits and drawbacks. The sportier look and potentially improved handling on-road are appealing to some drivers.
However, the slight reduction in ground clearance and potential impact on off-road performance may be concerns for others. On-road, the differences in comfort and fuel efficiency are likely to be minimal for most drivers. Off-road, the impact may be more noticeable, particularly in challenging terrain.
Ultimately, the decision depends on your driving habits and preferences. If you prioritize on-road performance and aesthetics, the switch may be worthwhile. For frequent off-roaders or those seeking maximum comfort, sticking with the original size might be the better choice.
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.