265/60R18 vs 265/65R17 Side-by-side tire size comparison with specs and compatibility

265/60R18⌀ 775mm265/65R17⌀ 776mm+0.5mm
Compatibility
+0.14% diameter difference
✓ Safe Swap

This tire swap is within the safe 3% diameter threshold. It should not cause issues with speedometer accuracy, ABS, or traction control systems.

Full Specifications Comparison

Specification 265/60R18 265/65R17 Difference
Overall Diameter 775.2 mm (30.5") 776.3 mm (30.6") +1.1 mm
Section Width 265 mm (10.4") 265 mm (10.4") 0 mm
Sidewall Height 159 mm 172.3 mm +13.3 mm
Circumference 2435.4 mm 2438.8 mm +3.4 mm
Revolutions/Mile 661 660 -1
Aspect Ratio 60% 65% +5%
Rim Diameter 18" 17" -1"

Key Impact Summary

Ground Clearance
+0.5 mm
Speedometer Error
+0.14%
Width Change
0 mm
Sidewall Change
+13.3 mm

Speedometer Correction Table

When switching from 265/60R18 to 265/65R17, your speedometer will under-read. Here is the correction at common speeds:

Speedometer Shows Actual Speed (mph) Difference
30 mph 30 mph 0 mph
40 mph 40.1 mph +0.1 mph
50 mph 50.1 mph +0.1 mph
60 mph 60.1 mph +0.1 mph
70 mph 70.1 mph +0.1 mph
80 mph 80.1 mph +0.1 mph
90 mph 90.1 mph +0.1 mph
100 mph 100.1 mph +0.1 mph
110 mph 110.2 mph +0.2 mph
120 mph 120.2 mph +0.2 mph

What This Swap Means

Taller sidewall: The 13.3mm increase in sidewall height provides a more comfortable ride by absorbing more road imperfections. Taller sidewalls also offer better protection against pothole damage to wheels. The trade-off is slightly less responsive steering feel.

Ground clearance: Increases by 0.5mm, providing slightly better approach angles for off-road driving and speed bump clearance.

Vehicles Using 265/60R18

Vehicles Using 265/65R17

Related Comparisons

Individual Tire Specs

Frequently Asked Questions

Yes, this swap is generally safe. The diameter difference is +0.14% (+1.1mm). This is within the safe 3% threshold and should not significantly affect your speedometer, ABS, or traction control.
Switching from 265/60R18 to 265/65R17 creates a +0.14% speedometer error. Your actual speed will be faster than displayed — at an indicated 60 mph, you'll actually be going 60.1 mph.
Switching from 265/60R18 to 265/65R17 changes ground clearance by +0.5mm. The vehicle will sit 0.5mm higher. Ground clearance change equals half the overall diameter difference.