Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 60/80-17 | 80/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.78 (527.8) | 22.67 (575.8) | 1.89 (48) 9.1% |
| Width inches (mm) | 2.36 (60) | 3.15 (80) | 0.79 (20) 33.3% |
| Circum. inches (mm) | 65.28 (1658.13) | 71.22 (1808.93) | 5.94 (150.8) 9.1% |
| Sidewall Height inches (mm) | 1.89 (48) | 2.83 (72) | 0.94 (24) 50% |
| Revolutions per mile (km) | 970.58 (603.09) | 889.67 (552.81) | -80.91 (-50.27) -8.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.82 mph (35.11 km/h) |
| 25 mph (40.23 km/h) | 27.27 mph (43.89 km/h) |
| 30 mph (48.28 km/h) | 32.73 mph (52.67 km/h) |
| 35 mph (56.33 km/h) | 38.18 mph (61.45 km/h) |
| 40 mph (64.37 km/h) | 43.64 mph (70.23 km/h) |
| 45 mph (72.42 km/h) | 49.09 mph (79.01 km/h) |
| 50 mph (80.47 km/h) | 54.55 mph (87.79 km/h) |
| 55 mph (88.51 km/h) | 60 mph (96.56 km/h) |
| 60 mph (96.56 km/h) | 65.46 mph (105.34 km/h) |
| 65 mph (104.61 km/h) | 70.91 mph (114.12 km/h) |
| 70 mph (112.65 km/h) | 76.37 mph (122.9 km/h) |
| 75 mph (120.7 km/h) | 81.82 mph (131.68 km/h) |
| 80 mph (128.75 km/h) | 87.28 mph (140.46 km/h) |
| 85 mph (136.79 km/h) | 92.73 mph (149.24 km/h) |
| 90 mph (144.84 km/h) | 98.18 mph (158.01 km/h) |
| 95 mph (152.89 km/h) | 103.64 mph (166.79 km/h) |
| 100 mph (160.93 km/h) | 109.09 mph (175.57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2264 | 2630 | 2832 | 2958 | 3093 | 3189 | 3295 | 3420 | 3594 | 3767 | 3960 | 4114 | 4393 | 4701 | 4942 | 5096 | 5183 | 5501 | 5944 | 6908 |
Better Fuel Economy Factory Ratios Increased Power
