Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/60-20 | 155/75-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.8 (706) | 29.15 (740.5) | 1.36 (34.5) 4.9% |
| Width inches (mm) | 6.5 (165) | 6.1 (155) | -0.39 (-10) -6.1% |
| Circum. inches (mm) | 87.32 (2217.96) | 91.59 (2326.35) | 4.27 (108.38) 4.9% |
| Sidewall Height inches (mm) | 3.9 (99) | 4.58 (116.25) | 0.68 (17.25) 17.4% |
| Revolutions per mile (km) | 725.6 (450.86) | 691.79 (429.86) | -33.81 (-21.01) -4.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.98 mph (33.76 km/h) |
| 25 mph (40.23 km/h) | 26.22 mph (42.2 km/h) |
| 30 mph (48.28 km/h) | 31.47 mph (50.64 km/h) |
| 35 mph (56.33 km/h) | 36.71 mph (59.08 km/h) |
| 40 mph (64.37 km/h) | 41.95 mph (67.52 km/h) |
| 45 mph (72.42 km/h) | 47.2 mph (75.96 km/h) |
| 50 mph (80.47 km/h) | 52.44 mph (84.4 km/h) |
| 55 mph (88.51 km/h) | 57.69 mph (92.84 km/h) |
| 60 mph (96.56 km/h) | 62.93 mph (101.28 km/h) |
| 65 mph (104.61 km/h) | 68.18 mph (109.72 km/h) |
| 70 mph (112.65 km/h) | 73.42 mph (118.16 km/h) |
| 75 mph (120.7 km/h) | 78.67 mph (126.6 km/h) |
| 80 mph (128.75 km/h) | 83.91 mph (135.04 km/h) |
| 85 mph (136.79 km/h) | 89.15 mph (143.48 km/h) |
| 90 mph (144.84 km/h) | 94.4 mph (151.92 km/h) |
| 95 mph (152.89 km/h) | 99.64 mph (160.36 km/h) |
| 100 mph (160.93 km/h) | 104.89 mph (168.8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1760 | 2045 | 2202 | 2300 | 2405 | 2480 | 2562 | 2659 | 2794 | 2929 | 3079 | 3199 | 3416 | 3656 | 3843 | 3963 | 4030 | 4278 | 4622 | 5371 |
Better Fuel Economy Factory Ratios Increased Power
