Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 110/80-18 | 140/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.93 (633.2) | 25.72 (653.2) | 0.79 (20) 3.2% |
| Width inches (mm) | 4.33 (110) | 5.51 (140) | 1.18 (30) 27.3% |
| Circum. inches (mm) | 78.32 (1989.26) | 80.79 (2052.09) | 2.47 (62.83) 3.2% |
| Sidewall Height inches (mm) | 3.46 (88) | 3.86 (98) | 0.39 (10) 11.4% |
| Revolutions per mile (km) | 809.02 (502.7) | 784.25 (487.31) | -24.77 (-15.39) -3.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.63 mph (33.2 km/h) |
| 25 mph (40.23 km/h) | 25.79 mph (41.5 km/h) |
| 30 mph (48.28 km/h) | 30.95 mph (49.81 km/h) |
| 35 mph (56.33 km/h) | 36.11 mph (58.11 km/h) |
| 40 mph (64.37 km/h) | 41.26 mph (66.41 km/h) |
| 45 mph (72.42 km/h) | 46.42 mph (74.71 km/h) |
| 50 mph (80.47 km/h) | 51.58 mph (83.01 km/h) |
| 55 mph (88.51 km/h) | 56.74 mph (91.31 km/h) |
| 60 mph (96.56 km/h) | 61.9 mph (99.61 km/h) |
| 65 mph (104.61 km/h) | 67.05 mph (107.91 km/h) |
| 70 mph (112.65 km/h) | 72.21 mph (116.21 km/h) |
| 75 mph (120.7 km/h) | 77.37 mph (124.51 km/h) |
| 80 mph (128.75 km/h) | 82.53 mph (132.81 km/h) |
| 85 mph (136.79 km/h) | 87.68 mph (141.12 km/h) |
| 90 mph (144.84 km/h) | 92.84 mph (149.42 km/h) |
| 95 mph (152.89 km/h) | 98 mph (157.72 km/h) |
| 100 mph (160.93 km/h) | 103.16 mph (166.02 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1996 | 2318 | 2497 | 2607 | 2726 | 2811 | 2904 | 3015 | 3168 | 3321 | 3490 | 3626 | 3873 | 4144 | 4357 | 4493 | 4569 | 4849 | 5240 | 6089 |
Better Fuel Economy Factory Ratios Increased Power
