Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-13 | 165/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.13 (562.2) | 24.39 (619.6) | 2.26 (57.4) 10.2% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 69.54 (1766.2) | 76.64 (1946.53) | 7.1 (180.33) 10.2% |
| Sidewall Height inches (mm) | 4.57 (116) | 5.2 (132) | 0.63 (16) 13.8% |
| Revolutions per mile (km) | 911.19 (566.19) | 826.78 (513.73) | -84.41 (-52.45) -9.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.04 mph (35.47 km/h) |
| 25 mph (40.23 km/h) | 27.55 mph (44.34 km/h) |
| 30 mph (48.28 km/h) | 33.06 mph (53.21 km/h) |
| 35 mph (56.33 km/h) | 38.57 mph (62.08 km/h) |
| 40 mph (64.37 km/h) | 44.08 mph (70.95 km/h) |
| 45 mph (72.42 km/h) | 49.59 mph (79.81 km/h) |
| 50 mph (80.47 km/h) | 55.1 mph (88.68 km/h) |
| 55 mph (88.51 km/h) | 60.62 mph (97.55 km/h) |
| 60 mph (96.56 km/h) | 66.13 mph (106.42 km/h) |
| 65 mph (104.61 km/h) | 71.64 mph (115.29 km/h) |
| 70 mph (112.65 km/h) | 77.15 mph (124.16 km/h) |
| 75 mph (120.7 km/h) | 82.66 mph (133.02 km/h) |
| 80 mph (128.75 km/h) | 88.17 mph (141.89 km/h) |
| 85 mph (136.79 km/h) | 93.68 mph (150.76 km/h) |
| 90 mph (144.84 km/h) | 99.19 mph (159.63 km/h) |
| 95 mph (152.89 km/h) | 104.7 mph (168.5 km/h) |
| 100 mph (160.93 km/h) | 110.21 mph (177.37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2104 | 2444 | 2632 | 2749 | 2874 | 2963 | 3062 | 3178 | 3340 | 3501 | 3680 | 3823 | 4083 | 4369 | 4593 | 4736 | 4817 | 5112 | 5524 | 6419 |
Better Fuel Economy Factory Ratios Increased Power
