Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/70-18 | 150/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.72 (653.2) | 25.09 (637.2) | -0.63 (-16) -2.4% |
| Width inches (mm) | 5.51 (140) | 5.91 (150) | 0.39 (10) 7.1% |
| Circum. inches (mm) | 80.79 (2052.09) | 78.81 (2001.82) | -1.98 (-50.27) -2.4% |
| Sidewall Height inches (mm) | 3.86 (98) | 3.54 (90) | -0.31 (-8) -8.2% |
| Revolutions per mile (km) | 784.25 (487.31) | 803.94 (499.54) | 19.69 (12.24) 2.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.51 mph (31.4 km/h) |
| 25 mph (40.23 km/h) | 24.39 mph (39.25 km/h) |
| 30 mph (48.28 km/h) | 29.27 mph (47.1 km/h) |
| 35 mph (56.33 km/h) | 34.14 mph (54.95 km/h) |
| 40 mph (64.37 km/h) | 39.02 mph (62.8 km/h) |
| 45 mph (72.42 km/h) | 43.9 mph (70.65 km/h) |
| 50 mph (80.47 km/h) | 48.78 mph (78.5 km/h) |
| 55 mph (88.51 km/h) | 53.65 mph (86.35 km/h) |
| 60 mph (96.56 km/h) | 58.53 mph (94.2 km/h) |
| 65 mph (104.61 km/h) | 63.41 mph (102.05 km/h) |
| 70 mph (112.65 km/h) | 68.29 mph (109.89 km/h) |
| 75 mph (120.7 km/h) | 73.16 mph (117.74 km/h) |
| 80 mph (128.75 km/h) | 78.04 mph (125.59 km/h) |
| 85 mph (136.79 km/h) | 82.92 mph (133.44 km/h) |
| 90 mph (144.84 km/h) | 87.8 mph (141.29 km/h) |
| 95 mph (152.89 km/h) | 92.67 mph (149.14 km/h) |
| 100 mph (160.93 km/h) | 97.55 mph (156.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2046 | 2377 | 2560 | 2673 | 2795 | 2882 | 2977 | 3091 | 3247 | 3404 | 3578 | 3717 | 3970 | 4248 | 4466 | 4605 | 4684 | 4971 | 5372 | 6242 |
Better Fuel Economy Factory Ratios Increased Power
