Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/40-18 | 265/35-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.4 (645.2) | 25.3 (642.7) | -0.1 (-2.5) -0.4% |
| Width inches (mm) | 9.25 (235) | 10.43 (265) | 1.18 (30) 12.8% |
| Circum. inches (mm) | 79.8 (2026.96) | 79.49 (2019.1) | -0.31 (-7.85) -0.4% |
| Sidewall Height inches (mm) | 3.7 (94) | 3.65 (92.75) | -0.05 (-1.25) -1.3% |
| Revolutions per mile (km) | 793.97 (493.35) | 797.06 (495.27) | 3.09 (1.92) 0.4% |
265/35-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.92 mph (32.06 km/h) |
| 25 mph (40.23 km/h) | 24.9 mph (40.08 km/h) |
| 30 mph (48.28 km/h) | 29.88 mph (48.09 km/h) |
| 35 mph (56.33 km/h) | 34.86 mph (56.11 km/h) |
| 40 mph (64.37 km/h) | 39.85 mph (64.12 km/h) |
| 45 mph (72.42 km/h) | 44.83 mph (72.14 km/h) |
| 50 mph (80.47 km/h) | 49.81 mph (80.16 km/h) |
| 55 mph (88.51 km/h) | 54.79 mph (88.17 km/h) |
| 60 mph (96.56 km/h) | 59.77 mph (96.19 km/h) |
| 65 mph (104.61 km/h) | 64.75 mph (104.2 km/h) |
| 70 mph (112.65 km/h) | 69.73 mph (112.22 km/h) |
| 75 mph (120.7 km/h) | 74.71 mph (120.23 km/h) |
| 80 mph (128.75 km/h) | 79.69 mph (128.25 km/h) |
| 85 mph (136.79 km/h) | 84.67 mph (136.26 km/h) |
| 90 mph (144.84 km/h) | 89.65 mph (144.28 km/h) |
| 95 mph (152.89 km/h) | 94.63 mph (152.3 km/h) |
| 100 mph (160.93 km/h) | 99.61 mph (160.31 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2028 | 2356 | 2538 | 2650 | 2771 | 2857 | 2952 | 3064 | 3219 | 3375 | 3547 | 3686 | 3936 | 4212 | 4428 | 4566 | 4644 | 4928 | 5326 | 6189 |
Better Fuel Economy Factory Ratios Increased Power
