Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-17 | 160/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.61 (599.8) | 25.82 (655.8) | 2.2 (56) 9.3% |
| Width inches (mm) | 4.72 (120) | 6.3 (160) | 1.57 (40) 33.3% |
| Circum. inches (mm) | 74.19 (1884.33) | 81.11 (2060.26) | 6.93 (175.93) 9.3% |
| Sidewall Height inches (mm) | 3.31 (84) | 4.41 (112) | 1.1 (28) 33.3% |
| Revolutions per mile (km) | 854.07 (530.69) | 781.14 (485.38) | -72.93 (-45.32) -8.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.87 mph (35.19 km/h) |
| 25 mph (40.23 km/h) | 27.33 mph (43.99 km/h) |
| 30 mph (48.28 km/h) | 32.8 mph (52.79 km/h) |
| 35 mph (56.33 km/h) | 38.27 mph (61.59 km/h) |
| 40 mph (64.37 km/h) | 43.73 mph (70.38 km/h) |
| 45 mph (72.42 km/h) | 49.2 mph (79.18 km/h) |
| 50 mph (80.47 km/h) | 54.67 mph (87.98 km/h) |
| 55 mph (88.51 km/h) | 60.14 mph (96.78 km/h) |
| 60 mph (96.56 km/h) | 65.6 mph (105.58 km/h) |
| 65 mph (104.61 km/h) | 71.07 mph (114.37 km/h) |
| 70 mph (112.65 km/h) | 76.54 mph (123.17 km/h) |
| 75 mph (120.7 km/h) | 82 mph (131.97 km/h) |
| 80 mph (128.75 km/h) | 87.47 mph (140.77 km/h) |
| 85 mph (136.79 km/h) | 92.94 mph (149.57 km/h) |
| 90 mph (144.84 km/h) | 98.4 mph (158.36 km/h) |
| 95 mph (152.89 km/h) | 103.87 mph (167.16 km/h) |
| 100 mph (160.93 km/h) | 109.34 mph (175.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1988 | 2309 | 2487 | 2597 | 2715 | 2800 | 2893 | 3003 | 3155 | 3307 | 3477 | 3612 | 3857 | 4128 | 4339 | 4475 | 4551 | 4830 | 5219 | 6065 |
Better Fuel Economy Factory Ratios Increased Power
