Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/90-15 | 145/90-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.86 (606) | 26.28 (667.4) | 2.42 (61.4) 10.1% |
| Width inches (mm) | 4.92 (125) | 5.71 (145) | 0.79 (20) 16% |
| Circum. inches (mm) | 74.95 (1903.81) | 82.55 (2096.7) | 7.59 (192.89) 10.1% |
| Sidewall Height inches (mm) | 4.43 (112.5) | 5.14 (130.5) | 0.71 (18) 16% |
| Revolutions per mile (km) | 845.33 (525.26) | 767.56 (476.94) | -77.77 (-48.32) -9.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.03 mph (35.45 km/h) |
| 25 mph (40.23 km/h) | 27.53 mph (44.31 km/h) |
| 30 mph (48.28 km/h) | 33.04 mph (53.17 km/h) |
| 35 mph (56.33 km/h) | 38.55 mph (62.03 km/h) |
| 40 mph (64.37 km/h) | 44.05 mph (70.9 km/h) |
| 45 mph (72.42 km/h) | 49.56 mph (79.76 km/h) |
| 50 mph (80.47 km/h) | 55.07 mph (88.62 km/h) |
| 55 mph (88.51 km/h) | 60.57 mph (97.48 km/h) |
| 60 mph (96.56 km/h) | 66.08 mph (106.34 km/h) |
| 65 mph (104.61 km/h) | 71.59 mph (115.21 km/h) |
| 70 mph (112.65 km/h) | 77.09 mph (124.07 km/h) |
| 75 mph (120.7 km/h) | 82.6 mph (132.93 km/h) |
| 80 mph (128.75 km/h) | 88.11 mph (141.79 km/h) |
| 85 mph (136.79 km/h) | 93.61 mph (150.65 km/h) |
| 90 mph (144.84 km/h) | 99.12 mph (159.52 km/h) |
| 95 mph (152.89 km/h) | 104.63 mph (168.38 km/h) |
| 100 mph (160.93 km/h) | 110.13 mph (177.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1953 | 2269 | 2444 | 2552 | 2668 | 2751 | 2843 | 2951 | 3100 | 3250 | 3416 | 3549 | 3790 | 4056 | 4264 | 4397 | 4472 | 4746 | 5128 | 5960 |
Better Fuel Economy Factory Ratios Increased Power
