Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-12 | 170/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.65 (549.8) | 22.37 (568.2) | 0.72 (18.4) 3.3% |
| Width inches (mm) | 6.89 (175) | 6.69 (170) | -0.2 (-5) -2.9% |
| Circum. inches (mm) | 68 (1727.25) | 70.28 (1785.05) | 2.28 (57.81) 3.3% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 4.69 (119) | -0.14 (-3.5) -2.9% |
| Revolutions per mile (km) | 931.74 (578.95) | 901.57 (560.21) | -30.17 (-18.75) -3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.67 mph (33.26 km/h) |
| 25 mph (40.23 km/h) | 25.84 mph (41.58 km/h) |
| 30 mph (48.28 km/h) | 31 mph (49.9 km/h) |
| 35 mph (56.33 km/h) | 36.17 mph (58.21 km/h) |
| 40 mph (64.37 km/h) | 41.34 mph (66.53 km/h) |
| 45 mph (72.42 km/h) | 46.51 mph (74.84 km/h) |
| 50 mph (80.47 km/h) | 51.67 mph (83.16 km/h) |
| 55 mph (88.51 km/h) | 56.84 mph (91.48 km/h) |
| 60 mph (96.56 km/h) | 62.01 mph (99.79 km/h) |
| 65 mph (104.61 km/h) | 67.18 mph (108.11 km/h) |
| 70 mph (112.65 km/h) | 72.34 mph (116.42 km/h) |
| 75 mph (120.7 km/h) | 77.51 mph (124.74 km/h) |
| 80 mph (128.75 km/h) | 82.68 mph (133.06 km/h) |
| 85 mph (136.79 km/h) | 87.84 mph (141.37 km/h) |
| 90 mph (144.84 km/h) | 93.01 mph (149.69 km/h) |
| 95 mph (152.89 km/h) | 98.18 mph (158 km/h) |
| 100 mph (160.93 km/h) | 103.35 mph (166.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2294 | 2665 | 2870 | 2997 | 3134 | 3232 | 3339 | 3466 | 3642 | 3817 | 4013 | 4169 | 4452 | 4764 | 5008 | 5165 | 5253 | 5575 | 6024 | 7000 |
Better Fuel Economy Factory Ratios Increased Power
