Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/90-18 | 265/90-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.98 (736.2) | 36.78 (934.2) | 7.8 (198) 26.9% |
| Width inches (mm) | 6.1 (155) | 10.43 (265) | 4.33 (110) 71% |
| Circum. inches (mm) | 91.06 (2312.84) | 115.55 (2934.88) | 24.49 (622.04) 26.9% |
| Sidewall Height inches (mm) | 5.49 (139.5) | 9.39 (238.5) | 3.9 (99) 71% |
| Revolutions per mile (km) | 695.83 (432.37) | 548.35 (340.73) | -147.48 (-91.64) -21.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.38 mph (40.84 km/h) |
| 25 mph (40.23 km/h) | 31.72 mph (51.05 km/h) |
| 30 mph (48.28 km/h) | 38.07 mph (61.27 km/h) |
| 35 mph (56.33 km/h) | 44.41 mph (71.48 km/h) |
| 40 mph (64.37 km/h) | 50.76 mph (81.69 km/h) |
| 45 mph (72.42 km/h) | 57.1 mph (91.9 km/h) |
| 50 mph (80.47 km/h) | 63.45 mph (102.11 km/h) |
| 55 mph (88.51 km/h) | 69.79 mph (112.32 km/h) |
| 60 mph (96.56 km/h) | 76.14 mph (122.53 km/h) |
| 65 mph (104.61 km/h) | 82.48 mph (132.74 km/h) |
| 70 mph (112.65 km/h) | 88.83 mph (142.95 km/h) |
| 75 mph (120.7 km/h) | 95.17 mph (153.16 km/h) |
| 80 mph (128.75 km/h) | 101.52 mph (163.37 km/h) |
| 85 mph (136.79 km/h) | 107.86 mph (173.59 km/h) |
| 90 mph (144.84 km/h) | 114.21 mph (183.8 km/h) |
| 95 mph (152.89 km/h) | 120.55 mph (194.01 km/h) |
| 100 mph (160.93 km/h) | 126.89 mph (204.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1395 | 1621 | 1746 | 1823 | 1906 | 1966 | 2031 | 2108 | 2215 | 2322 | 2441 | 2536 | 2708 | 2898 | 3046 | 3141 | 3195 | 3391 | 3664 | 4258 |
Better Fuel Economy Factory Ratios Increased Power
