Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/60-18 | 130/90-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.61 (625.2) | 27.21 (691.2) | 2.6 (66) 10.6% |
| Width inches (mm) | 5.51 (140) | 5.12 (130) | -0.39 (-10) -7.1% |
| Circum. inches (mm) | 77.33 (1964.12) | 85.49 (2171.47) | 8.16 (207.35) 10.6% |
| Sidewall Height inches (mm) | 3.31 (84) | 4.61 (117) | 1.3 (33) 39.3% |
| Revolutions per mile (km) | 819.37 (509.13) | 741.13 (460.52) | -78.24 (-48.62) -9.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.11 mph (35.58 km/h) |
| 25 mph (40.23 km/h) | 27.64 mph (44.48 km/h) |
| 30 mph (48.28 km/h) | 33.17 mph (53.38 km/h) |
| 35 mph (56.33 km/h) | 38.69 mph (62.27 km/h) |
| 40 mph (64.37 km/h) | 44.22 mph (71.17 km/h) |
| 45 mph (72.42 km/h) | 49.75 mph (80.07 km/h) |
| 50 mph (80.47 km/h) | 55.28 mph (88.96 km/h) |
| 55 mph (88.51 km/h) | 60.81 mph (97.86 km/h) |
| 60 mph (96.56 km/h) | 66.33 mph (106.75 km/h) |
| 65 mph (104.61 km/h) | 71.86 mph (115.65 km/h) |
| 70 mph (112.65 km/h) | 77.39 mph (124.55 km/h) |
| 75 mph (120.7 km/h) | 82.92 mph (133.44 km/h) |
| 80 mph (128.75 km/h) | 88.45 mph (142.34 km/h) |
| 85 mph (136.79 km/h) | 93.97 mph (151.24 km/h) |
| 90 mph (144.84 km/h) | 99.5 mph (160.13 km/h) |
| 95 mph (152.89 km/h) | 105.03 mph (169.03 km/h) |
| 100 mph (160.93 km/h) | 110.56 mph (177.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1886 | 2191 | 2360 | 2464 | 2576 | 2657 | 2745 | 2849 | 2994 | 3138 | 3299 | 3427 | 3660 | 3917 | 4117 | 4246 | 4318 | 4583 | 4952 | 5754 |
Better Fuel Economy Factory Ratios Increased Power
