Tire Size 265/70r16 vs 245/75r16
Are you considering changing your 265/70R16 tires to 245/75R16? While both sizes may look similar, there are important differences to understand before making the switch. We’ll explore the key factors to help you decide if this tire size change is right for your vehicle.
- The overall diameter difference is only 0.5%, within the acceptable 3% range
- Narrower tires may slightly improve fuel efficiency due to less rolling resistance
- Handling may be minimally affected, with less lateral grip during cornering
- Taller sidewalls of 245/75R16 can provide a slightly smoother ride on bumpy roads
265/70r16 vs 245/75r16
Compare the differences between the tire sizes 275/65R18 and 265/70R18 using this table.
Fitment Guide
The overall diameters of the 265/70r16 and 245/75r16 are very close at 30.61 vs 30.47 inches respectively.
This keeps the diameter difference within the 3% limit for direct replacement without adjustments. So, the 245/75r16 can directly replace the 265/70r16 if needed.
Ground Clearance
With a diameter of 0.14 inches less, the 245/75r16 provides slightly less ground clearance than the 265/70r16. This slight reduction is unlikely to cause issues on stock vehicles.
But those with lifted suspensions may want to retain the marginally extra clearance of the 265/70r16 when off-roading over obstacles.
Gas Mileage
The narrower 245/75r16 is lighter than the 265/70r16 by about 1.5 lbs per tire. This reduces rotational mass, which improves fuel efficiency slightly. Less tire rubber also means less rolling resistance. These factors give the 245/75r16 a small advantage in gas mileage over the 265/70r16.
Ride Comfort
The 245/75r16 shorter, more flexible 75 aspect ratio sidewall absorbs road imperfections better than the 265/70r16 70 aspect ratio.
This provides a more compliant, comfortable ride over uneven surfaces. The difference is modest but noticeable over very rough terrain.
Aesthetics
Visually, the two sizes are similar. The 245/75r16 taller sidewall looks subtly more “stretched,” which some find aesthetically pleasing. This taller sidewall better suits a truck or SUV aesthetic compared to an overly low-profile tire.
Handling & Stability
The 245/75r16 shorter sidewall gives it a handling advantage over the 265/70r16. Quicker steering response and cornering precision is felt on the pavement.
But both offer responsive, stable handling for normal driving. Off-road, the 265/70r16 added sidewall flex enhances stability slightly.
Noise & Vibration
Due to its shorter, stiffer sidewall, the 245/75r16 transmits more road noise and vibration into the cabin.
This gives it a slightly firmer ride. The 265/70r16 extra sidewall cushioning helps dampen noise and vibrations better. But differences are minor for most drivers.
Durability & Wear
The narrower 245/75r16 exhibits slightly more even tire wear than the wider 265/70r16. The reduced width decreases shoulder wear issues on the 245/75r16.
Tread life is also marginally longer for the 245/75r16 owing to the reduced rolling resistance.
Adverse Conditions
Both sizes perform well overall in rain, snow, and light off-roading. The 245/75r16 shorter sidewall makes it more responsive on slippery surfaces.
But the 265/70r16 extra ground clearance gives it a slight traction advantage in deep snow or over obstacles.
Speedometer Reading
Due to its 0.5% smaller diameter, the 245/75r16 causes the speedometer to read 0.66 mph higher than the actual speed.
At a true 20 mph speed, the speedometer read 20.66 mph with 245/75r16 tires fitted compared to 20 mph with the 265/70r16 size.
Main Difference Between 265/70r16 and 245/75r16 Tires
The main difference between 265/70R16 and 245/75R16 tires is the width, with 265/70R16 being 0.79 inches (20 mm) wider than 245/75R16.
Can I Use 245/75r16 Tires Instead of 265/70r16?
Yes, 245/75R16 tires can generally be used in place of 265/70R16 because the overall diameter difference is only 0.5%, which falls within the typically acceptable range of 3%. However, always double check your vehicle’s specific requirements.
How Much Taller is a 265/70r16 Tire Than a 245/75r16?
A 265/70R16 tire is 0.14 inches (3.5 mm) taller than a 245/75R16. The overall diameter of the 265/70R16 is 30.61 inches (777.4 mm), while the 245/75R16 measures 30.47 inches (773.9 mm) tall.
How Much Wider is a 265/70r16 Tire Than a 245/75r16?
The 265/70R16 tire is 0.79 inches (20 mm) wider than the 245/75R16 size. Measuring 10.43 inches (265 mm) wide, the 265/70R16 has a section width that is about 7.5% greater than the 9.65 inch (245 mm) width of the 245/75R16.
Our Observations
After analyzing the differences between 265/70R16 and 245/75R16 tires, we believe the switch is feasible for most vehicles and driving situations. The 0.5% difference in overall diameter is well within the 3% fitment guideline, meaning no major modifications are needed.
On-road, the switch to 245/75R16 may slightly improve fuel efficiency and ride comfort, with minimal impact on handling and speedometer accuracy.
Off-road, the taller sidewall can provide better impact absorption and traction on rough terrain, despite the marginally reduced ground clearance.
Overall, switching from 265/70R16 to 245/75R16 tires can be a viable option depending on your specific vehicle, driving habits, and performance preferences. Always consult with a trusted tire professional to ensure proper fitment and safety for your unique situation.
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.