Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/70-16 | 170/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.37 (644.4) | 26.04 (661.4) | 0.67 (17) 2.6% |
| Width inches (mm) | 6.69 (170) | 6.69 (170) | 0 (0) 0% |
| Circum. inches (mm) | 79.7 (2024.44) | 81.81 (2077.85) | 2.1 (53.41) 2.6% |
| Sidewall Height inches (mm) | 4.69 (119) | 5.02 (127.5) | 0.33 (8.5) 7.1% |
| Revolutions per mile (km) | 794.96 (493.96) | 774.52 (481.27) | -20.43 (-12.7) -2.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.53 mph (33.04 km/h) |
| 25 mph (40.23 km/h) | 25.66 mph (41.3 km/h) |
| 30 mph (48.28 km/h) | 30.79 mph (49.55 km/h) |
| 35 mph (56.33 km/h) | 35.92 mph (57.81 km/h) |
| 40 mph (64.37 km/h) | 41.06 mph (66.07 km/h) |
| 45 mph (72.42 km/h) | 46.19 mph (74.33 km/h) |
| 50 mph (80.47 km/h) | 51.32 mph (82.59 km/h) |
| 55 mph (88.51 km/h) | 56.45 mph (90.85 km/h) |
| 60 mph (96.56 km/h) | 61.58 mph (99.11 km/h) |
| 65 mph (104.61 km/h) | 66.71 mph (107.37 km/h) |
| 70 mph (112.65 km/h) | 71.85 mph (115.63 km/h) |
| 75 mph (120.7 km/h) | 76.98 mph (123.89 km/h) |
| 80 mph (128.75 km/h) | 82.11 mph (132.14 km/h) |
| 85 mph (136.79 km/h) | 87.24 mph (140.4 km/h) |
| 90 mph (144.84 km/h) | 92.37 mph (148.66 km/h) |
| 95 mph (152.89 km/h) | 97.51 mph (156.92 km/h) |
| 100 mph (160.93 km/h) | 102.64 mph (165.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1971 | 2290 | 2466 | 2575 | 2692 | 2776 | 2868 | 2977 | 3128 | 3279 | 3447 | 3581 | 3825 | 4093 | 4303 | 4437 | 4512 | 4789 | 5175 | 6014 |
Better Fuel Economy Factory Ratios Increased Power
