Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 90/90-18 | 110/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.38 (619.2) | 24.93 (633.2) | 0.55 (14) 2.3% |
| Width inches (mm) | 3.54 (90) | 4.33 (110) | 0.79 (20) 22.2% |
| Circum. inches (mm) | 76.59 (1945.27) | 78.32 (1989.26) | 1.73 (43.98) 2.3% |
| Sidewall Height inches (mm) | 3.19 (81) | 3.46 (88) | 0.28 (7) 8.6% |
| Revolutions per mile (km) | 827.31 (514.07) | 809.02 (502.7) | -18.29 (-11.37) -2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.45 mph (32.91 km/h) |
| 25 mph (40.23 km/h) | 25.57 mph (41.14 km/h) |
| 30 mph (48.28 km/h) | 30.68 mph (49.37 km/h) |
| 35 mph (56.33 km/h) | 35.79 mph (57.6 km/h) |
| 40 mph (64.37 km/h) | 40.9 mph (65.83 km/h) |
| 45 mph (72.42 km/h) | 46.02 mph (74.06 km/h) |
| 50 mph (80.47 km/h) | 51.13 mph (82.29 km/h) |
| 55 mph (88.51 km/h) | 56.24 mph (90.52 km/h) |
| 60 mph (96.56 km/h) | 61.36 mph (98.74 km/h) |
| 65 mph (104.61 km/h) | 66.47 mph (106.97 km/h) |
| 70 mph (112.65 km/h) | 71.58 mph (115.2 km/h) |
| 75 mph (120.7 km/h) | 76.7 mph (123.43 km/h) |
| 80 mph (128.75 km/h) | 81.81 mph (131.66 km/h) |
| 85 mph (136.79 km/h) | 86.92 mph (139.89 km/h) |
| 90 mph (144.84 km/h) | 92.03 mph (148.12 km/h) |
| 95 mph (152.89 km/h) | 97.15 mph (156.34 km/h) |
| 100 mph (160.93 km/h) | 102.26 mph (164.57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2059 | 2392 | 2576 | 2690 | 2812 | 2900 | 2996 | 3110 | 3268 | 3425 | 3601 | 3741 | 3995 | 4275 | 4494 | 4634 | 4713 | 5002 | 5405 | 6282 |
Better Fuel Economy Factory Ratios Increased Power
