Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-13 | 145/90-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.85 (504.2) | 23.28 (591.2) | 3.43 (87) 17.3% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 62.36 (1583.99) | 73.12 (1857.31) | 10.76 (273.32) 17.3% |
| Sidewall Height inches (mm) | 3.43 (87) | 5.14 (130.5) | 1.71 (43.5) 50% |
| Revolutions per mile (km) | 1016.01 (631.32) | 866.49 (538.41) | -149.51 (-92.9) -14.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.45 mph (37.74 km/h) |
| 25 mph (40.23 km/h) | 29.31 mph (47.18 km/h) |
| 30 mph (48.28 km/h) | 35.18 mph (56.61 km/h) |
| 35 mph (56.33 km/h) | 41.04 mph (66.05 km/h) |
| 40 mph (64.37 km/h) | 46.9 mph (75.48 km/h) |
| 45 mph (72.42 km/h) | 52.76 mph (84.92 km/h) |
| 50 mph (80.47 km/h) | 58.63 mph (94.35 km/h) |
| 55 mph (88.51 km/h) | 64.49 mph (103.79 km/h) |
| 60 mph (96.56 km/h) | 70.35 mph (113.22 km/h) |
| 65 mph (104.61 km/h) | 76.22 mph (122.66 km/h) |
| 70 mph (112.65 km/h) | 82.08 mph (132.09 km/h) |
| 75 mph (120.7 km/h) | 87.94 mph (141.53 km/h) |
| 80 mph (128.75 km/h) | 93.8 mph (150.96 km/h) |
| 85 mph (136.79 km/h) | 99.67 mph (160.4 km/h) |
| 90 mph (144.84 km/h) | 105.53 mph (169.83 km/h) |
| 95 mph (152.89 km/h) | 111.39 mph (179.27 km/h) |
| 100 mph (160.93 km/h) | 117.26 mph (188.7 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2205 | 2562 | 2759 | 2881 | 3012 | 3106 | 3209 | 3331 | 3500 | 3669 | 3857 | 4007 | 4279 | 4579 | 4814 | 4964 | 5048 | 5358 | 5789 | 6728 |
Better Fuel Economy Factory Ratios Increased Power
