Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/90-18 | 110/100-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.09 (637.2) | 26.66 (677.2) | 1.57 (40) 6.3% |
| Width inches (mm) | 3.94 (100) | 4.33 (110) | 0.39 (10) 10% |
| Circum. inches (mm) | 78.81 (2001.82) | 83.76 (2127.49) | 4.95 (125.66) 6.3% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.33 (110) | 0.79 (20) 22.2% |
| Revolutions per mile (km) | 803.94 (499.54) | 756.45 (470.04) | -47.49 (-29.51) -5.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.26 mph (34.21 km/h) |
| 25 mph (40.23 km/h) | 26.57 mph (42.76 km/h) |
| 30 mph (48.28 km/h) | 31.88 mph (51.31 km/h) |
| 35 mph (56.33 km/h) | 37.2 mph (59.86 km/h) |
| 40 mph (64.37 km/h) | 42.51 mph (68.41 km/h) |
| 45 mph (72.42 km/h) | 47.82 mph (76.97 km/h) |
| 50 mph (80.47 km/h) | 53.14 mph (85.52 km/h) |
| 55 mph (88.51 km/h) | 58.45 mph (94.07 km/h) |
| 60 mph (96.56 km/h) | 63.77 mph (102.62 km/h) |
| 65 mph (104.61 km/h) | 69.08 mph (111.17 km/h) |
| 70 mph (112.65 km/h) | 74.39 mph (119.73 km/h) |
| 75 mph (120.7 km/h) | 79.71 mph (128.28 km/h) |
| 80 mph (128.75 km/h) | 85.02 mph (136.83 km/h) |
| 85 mph (136.79 km/h) | 90.34 mph (145.38 km/h) |
| 90 mph (144.84 km/h) | 95.65 mph (153.93 km/h) |
| 95 mph (152.89 km/h) | 100.96 mph (162.49 km/h) |
| 100 mph (160.93 km/h) | 106.28 mph (171.04 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1925 | 2236 | 2408 | 2515 | 2630 | 2711 | 2802 | 2908 | 3055 | 3203 | 3367 | 3498 | 3735 | 3998 | 4202 | 4333 | 4407 | 4677 | 5054 | 5873 |
Better Fuel Economy Factory Ratios Increased Power
