Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/80-18 | 130/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.82 (681.2) | 26.19 (665.2) | -0.63 (-16) -2.3% |
| Width inches (mm) | 5.51 (140) | 5.12 (130) | -0.39 (-10) -7.1% |
| Circum. inches (mm) | 84.25 (2140.05) | 82.28 (2089.79) | -1.98 (-50.27) -2.3% |
| Sidewall Height inches (mm) | 4.41 (112) | 4.09 (104) | -0.31 (-8) -7.1% |
| Revolutions per mile (km) | 752.01 (467.28) | 770.1 (478.52) | 18.09 (11.24) 2.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.53 mph (31.43 km/h) |
| 25 mph (40.23 km/h) | 24.41 mph (39.29 km/h) |
| 30 mph (48.28 km/h) | 29.3 mph (47.15 km/h) |
| 35 mph (56.33 km/h) | 34.18 mph (55 km/h) |
| 40 mph (64.37 km/h) | 39.06 mph (62.86 km/h) |
| 45 mph (72.42 km/h) | 43.94 mph (70.72 km/h) |
| 50 mph (80.47 km/h) | 48.83 mph (78.58 km/h) |
| 55 mph (88.51 km/h) | 53.71 mph (86.44 km/h) |
| 60 mph (96.56 km/h) | 58.59 mph (94.29 km/h) |
| 65 mph (104.61 km/h) | 63.47 mph (102.15 km/h) |
| 70 mph (112.65 km/h) | 68.36 mph (110.01 km/h) |
| 75 mph (120.7 km/h) | 73.24 mph (117.87 km/h) |
| 80 mph (128.75 km/h) | 78.12 mph (125.72 km/h) |
| 85 mph (136.79 km/h) | 83 mph (133.58 km/h) |
| 90 mph (144.84 km/h) | 87.89 mph (141.44 km/h) |
| 95 mph (152.89 km/h) | 92.77 mph (149.3 km/h) |
| 100 mph (160.93 km/h) | 97.65 mph (157.15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1960 | 2277 | 2452 | 2560 | 2677 | 2760 | 2852 | 2960 | 3111 | 3261 | 3427 | 3561 | 3803 | 4070 | 4278 | 4412 | 4487 | 4762 | 5145 | 5979 |
Better Fuel Economy Factory Ratios Increased Power
