265/70R17 vs 265/65R17 Side-by-side tire size comparison with specs and compatibility
Compatibility
-3.3% diameter difference
⚠ Swap with Caution
This tire swap is between 3-5% diameter difference. Check for fender clearance and be aware of speedometer error. May require recalibration.
Full Specifications Comparison
| Specification | 265/70R17 | 265/65R17 | Difference |
|---|---|---|---|
| Overall Diameter | 802.8 mm (31.6") | 776.3 mm (30.6") | -26.5 mm |
| Section Width | 265 mm (10.4") | 265 mm (10.4") | 0 mm |
| Sidewall Height | 185.5 mm | 172.3 mm | -13.2 mm |
| Circumference | 2522.1 mm | 2438.8 mm | -83.3 mm |
| Revolutions/Mile | 638 | 660 | +22 |
| Aspect Ratio | 70% | 65% | -5% |
| Rim Diameter | 17" | 17" | 0" |
Key Impact Summary
Ground Clearance
-13.2 mm
Speedometer Error
-3.3%
Width Change
0 mm
Sidewall Change
-13.2 mm
Speedometer Correction Table
When switching from 265/70R17 to 265/65R17, your speedometer will over-read. Here is the correction at common speeds:
| Speedometer Shows | Actual Speed (mph) | Difference |
|---|---|---|
| 30 mph | 29 mph | -1 mph |
| 40 mph | 38.7 mph | -1.3 mph |
| 50 mph | 48.3 mph | -1.7 mph |
| 60 mph | 58 mph | -2 mph |
| 70 mph | 67.7 mph | -2.3 mph |
| 80 mph | 77.4 mph | -2.6 mph |
| 90 mph | 87 mph | -3 mph |
| 100 mph | 96.7 mph | -3.3 mph |
| 110 mph | 106.4 mph | -3.6 mph |
| 120 mph | 116 mph | -4 mph |
What This Swap Means
Shorter sidewall: The 13.2mm decrease in sidewall height improves steering response and cornering precision. However, ride quality becomes firmer and the wheels are more vulnerable to pothole damage. This is a common trade-off when upsizing wheels (plus-sizing).
Ground clearance: Decreases by 13.2mm, lowering the center of gravity slightly which can improve handling stability.
Vehicles Using 265/70R17
Vehicles Using 265/65R17
2025 Chevrolet Colorado Z71/Trail Boss 2025 Chevrolet Colorado ZR2 2024 Chevrolet Colorado Z71/Trail Boss 2024 Chevrolet Colorado ZR2 2023 Chevrolet Colorado Z71/Trail Boss/ZR2 2022 Chevrolet Colorado Z71/ZR2 2021 Chevrolet Colorado Z71/ZR2 2020 Chevrolet Colorado Z71/ZR2 2025 Nissan Frontier SV 2025 Nissan Frontier PRO-4X
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Individual Tire Specs
Frequently Asked Questions
This swap requires caution. The diameter difference is -3.3% (-26.5mm). This exceeds the recommended 3% threshold and may affect speedometer accuracy, ABS calibration, and could cause clearance issues.
Switching from 265/70R17 to 265/65R17 creates a -3.3% speedometer error. Your actual speed will be slower than displayed — at an indicated 60 mph, you'll actually be going 58.0 mph.
Switching from 265/70R17 to 265/65R17 changes ground clearance by -13.2mm. The vehicle will sit 13.2mm lower. Ground clearance change equals half the overall diameter difference.