Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/70-19 | 155/90-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.89 (657.6) | 28.98 (736.2) | 3.09 (78.6) 12% |
| Width inches (mm) | 4.92 (125) | 6.1 (155) | 1.18 (30) 24% |
| Circum. inches (mm) | 81.34 (2065.91) | 91.06 (2312.84) | 9.72 (246.93) 12% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 5.49 (139.5) | 2.05 (52) 59.4% |
| Revolutions per mile (km) | 779 (484.05) | 695.83 (432.37) | -83.17 (-51.68) -10.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.39 mph (36.03 km/h) |
| 25 mph (40.23 km/h) | 27.99 mph (45.04 km/h) |
| 30 mph (48.28 km/h) | 33.59 mph (54.05 km/h) |
| 35 mph (56.33 km/h) | 39.18 mph (63.06 km/h) |
| 40 mph (64.37 km/h) | 44.78 mph (72.07 km/h) |
| 45 mph (72.42 km/h) | 50.38 mph (81.08 km/h) |
| 50 mph (80.47 km/h) | 55.98 mph (90.09 km/h) |
| 55 mph (88.51 km/h) | 61.57 mph (99.09 km/h) |
| 60 mph (96.56 km/h) | 67.17 mph (108.1 km/h) |
| 65 mph (104.61 km/h) | 72.77 mph (117.11 km/h) |
| 70 mph (112.65 km/h) | 78.37 mph (126.12 km/h) |
| 75 mph (120.7 km/h) | 83.96 mph (135.13 km/h) |
| 80 mph (128.75 km/h) | 89.56 mph (144.14 km/h) |
| 85 mph (136.79 km/h) | 95.16 mph (153.14 km/h) |
| 90 mph (144.84 km/h) | 100.76 mph (162.15 km/h) |
| 95 mph (152.89 km/h) | 106.35 mph (171.16 km/h) |
| 100 mph (160.93 km/h) | 111.95 mph (180.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1771 | 2057 | 2215 | 2313 | 2419 | 2494 | 2577 | 2675 | 2811 | 2946 | 3097 | 3217 | 3436 | 3677 | 3866 | 3986 | 4054 | 4303 | 4649 | 5403 |
Better Fuel Economy Factory Ratios Increased Power
