Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 60/80-17 | 70/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.78 (527.8) | 21.96 (557.8) | 1.18 (30) 5.7% |
| Width inches (mm) | 2.36 (60) | 2.76 (70) | 0.39 (10) 16.7% |
| Circum. inches (mm) | 65.28 (1658.13) | 68.99 (1752.38) | 3.71 (94.25) 5.7% |
| Sidewall Height inches (mm) | 1.89 (48) | 2.48 (63) | 0.59 (15) 31.3% |
| Revolutions per mile (km) | 970.58 (603.09) | 918.38 (570.65) | -52.2 (-32.44) -5.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.14 mph (34.02 km/h) |
| 25 mph (40.23 km/h) | 26.42 mph (42.52 km/h) |
| 30 mph (48.28 km/h) | 31.71 mph (51.02 km/h) |
| 35 mph (56.33 km/h) | 36.99 mph (59.53 km/h) |
| 40 mph (64.37 km/h) | 42.27 mph (68.03 km/h) |
| 45 mph (72.42 km/h) | 47.56 mph (76.54 km/h) |
| 50 mph (80.47 km/h) | 52.84 mph (85.04 km/h) |
| 55 mph (88.51 km/h) | 58.13 mph (93.55 km/h) |
| 60 mph (96.56 km/h) | 63.41 mph (102.05 km/h) |
| 65 mph (104.61 km/h) | 68.69 mph (110.55 km/h) |
| 70 mph (112.65 km/h) | 73.98 mph (119.06 km/h) |
| 75 mph (120.7 km/h) | 79.26 mph (127.56 km/h) |
| 80 mph (128.75 km/h) | 84.55 mph (136.07 km/h) |
| 85 mph (136.79 km/h) | 89.83 mph (144.57 km/h) |
| 90 mph (144.84 km/h) | 95.12 mph (153.07 km/h) |
| 95 mph (152.89 km/h) | 100.4 mph (161.58 km/h) |
| 100 mph (160.93 km/h) | 105.68 mph (170.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
