Tire Size 245/70r16 vs 265/70r16
Thinking of changing your tires? Switching from a 245/70r16 to a 265/70r16 might seem simple, but let’s explore what it really means for your vehicle.
- Improved traction due to the wider tire footprint.
- Increased ground clearance from the taller tire.
- Enhanced off-road capability with a larger tire.
- Potential decrease in fuel efficiency due to added weight.
- Slight reduction in handling precision on paved roads.
- Possible speedometer inaccuracy because of the larger size.
- Better stability when carrying heavy loads or towing.
Fitment Guide
According to the Fitment Guide, replacement tires should be within 3% of the original tire’s diameter.
Since the diameter difference here is 3.7%, the interchange is not recommended without necessary adaptations to prevent issues like rubbing or clearance problems.
On-Road Impact
Changing tire size can significantly affect how your vehicle performs on the road. Here’s what you need to know about the on-road effects of this switch.
- Ground Clearance: The larger diameter raises your vehicle by about 0.55 inches, increasing ground clearance. This can help you navigate bumps and potholes more easily.
- Gas Mileage: Bigger tires are heavier and may cause your engine to work harder, potentially reducing fuel efficiency. You might notice a slight drop in miles per gallon.
- Aesthetic Look: The wider and taller tires give your vehicle a more robust and aggressive appearance, which some drivers find appealing.
- Ride Comfort: Taller sidewalls (an 8.2% increase) provide more cushioning between the wheel and the road, leading to a smoother ride over rough surfaces.
- Speedometer Accuracy: With larger tires, your speedometer will read lower than your actual speed. When it shows 20 mph, you’re actually going 20.75 mph. This difference can lead to unintended speeding.
- Handling: The increased width can improve grip on dry roads, enhancing cornering ability. However, the taller tires may affect steering responsiveness.
- Durability & Wear: Larger tires can wear differently. Proper maintenance is essential to ensure even wear and longevity.
Off-Road Impact
If you enjoy off-roading, the larger tires can offer some benefits and challenges. Here’s how the switch affects off-road performance.
- Traction: The wider footprint improves grip on loose surfaces like mud and sand, enhancing off-road capability.
- Obstacle Navigation: The increased diameter helps you roll over obstacles more easily, making rough terrains less challenging.
- Clearance Issues: The larger tires may rub against the wheel wells or suspension components, especially during extreme articulation. Modifications like a lift kit might be necessary.
- Vehicle Stress: Bigger tires can put extra strain on your vehicle’s drivetrain and brakes, potentially leading to increased wear if components aren’t upgraded.
245/70r16 vs 265/70r16
This table compares the key features of tire sizes 245/70R16 and 265/70R16.
| Feature | 245/70R16 | 265/70R16 | Difference |
|---|---|---|---|
| Diameter inches (mm) | 29.5 (749.4) | 30.61 (777.4) | 1.1 (28) 3.7% |
| Width inches (mm) | 9.65 (245) | 10.43 (265) | 0.79 (20) 8.2% |
| Circumference inches (mm) | 92.69 (2354.31) | 96.15 (2442.27) | 3.46 (87.96) 3.7% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 7.3 (185.5) | 0.55 (14) 8.2% |
| Revolutions per mile (km) | 683.57 (424.75) | 658.95 (409.45) | -24.62 (-15.3) -3.6% |
| Speedo Reading | 20 mph (32.19 km/h) | 20.75 mph (33.39 km/h) | +0.75 mph |
Difference Between 245/70R16 and 265/70R16
The main difference is width. The 265/70R16 tire is 0.79 inches (20 mm) wider than the 245/70R16 tire, offering more road contact and stability.
Can I Use 265/70R16 Instead of 245/70R16?
Yes, but the 265/70R16 tire is 3.7% larger in diameter, which may affect speedometer accuracy, fuel economy, and handling. Ensure your vehicle can accommodate this size.
How Much Taller Is a 265/70R16 Tire Than a 245/70R16?
The 265/70R16 tire is 1.1 inches (28 mm) taller than the 245/70R16 tire, providing extra ground clearance.
How Much Wider is a 265/70R16 Tire Than a 245/70R16?
The 265/70R16 tire is 0.79 inches (20 mm) wider than the 245/70R16 tire, offering a broader footprint for better traction.
Our Observation
Switching from 245/70r16 to 265/70r16 offers noticeable benefits, especially for those who drive off-road. You’ll gain better traction and improved ability to navigate obstacles.
On-road, you’ll enjoy a smoother ride and a more aggressive look. However, the 3.7% increase in diameter exceeds the recommended limit, meaning you might face issues like inaccurate speedometer readings and potential rubbing without proper adjustments.
The impact on fuel efficiency and handling is present but often minor. If you decide to make the switch, be prepared to make necessary adaptations to your vehicle to ensure safety and optimal performance.
The changes are significant enough to consider but may be negligible for some drivers depending on their specific needs.
Caitlin McCormack is a lead writer at Tiresizecompare.com and a trusted guide at AmarCalculator. With an extensive background in finance and mathematics, she simplifies complex calculations and delivers precise insights. Caitlin’s expertise ensures readers receive accurate and reliable information to make informed decisions. Her passion for numbers and dedication to clarity make her an invaluable resource for tire comparisons.
