Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 260/65-18 | 275/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.31 (795.2) | 34.24 (869.7) | 2.93 (74.5) 9.4% |
| Width inches (mm) | 10.24 (260) | 10.83 (275) | 0.59 (15) 5.8% |
| Circum. inches (mm) | 98.35 (2498.19) | 107.57 (2732.24) | 9.21 (234.05) 9.4% |
| Sidewall Height inches (mm) | 6.65 (169) | 8.12 (206.25) | 1.47 (37.25) 22% |
| Revolutions per mile (km) | 644.2 (400.29) | 589.02 (366) | -55.18 (-34.29) -8.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.87 mph (35.2 km/h) |
| 25 mph (40.23 km/h) | 27.34 mph (44 km/h) |
| 30 mph (48.28 km/h) | 32.81 mph (52.8 km/h) |
| 35 mph (56.33 km/h) | 38.28 mph (61.6 km/h) |
| 40 mph (64.37 km/h) | 43.75 mph (70.4 km/h) |
| 45 mph (72.42 km/h) | 49.22 mph (79.21 km/h) |
| 50 mph (80.47 km/h) | 54.68 mph (88.01 km/h) |
| 55 mph (88.51 km/h) | 60.15 mph (96.81 km/h) |
| 60 mph (96.56 km/h) | 65.62 mph (105.61 km/h) |
| 65 mph (104.61 km/h) | 71.09 mph (114.41 km/h) |
| 70 mph (112.65 km/h) | 76.56 mph (123.21 km/h) |
| 75 mph (120.7 km/h) | 82.03 mph (132.01 km/h) |
| 80 mph (128.75 km/h) | 87.49 mph (140.81 km/h) |
| 85 mph (136.79 km/h) | 92.96 mph (149.61 km/h) |
| 90 mph (144.84 km/h) | 98.43 mph (158.41 km/h) |
| 95 mph (152.89 km/h) | 103.9 mph (167.21 km/h) |
| 100 mph (160.93 km/h) | 109.37 mph (176.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1499 | 1741 | 1875 | 1958 | 2047 | 2111 | 2181 | 2264 | 2379 | 2494 | 2622 | 2724 | 2909 | 3113 | 3272 | 3374 | 3432 | 3642 | 3936 | 4573 |
Better Fuel Economy Factory Ratios Increased Power
