Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-19 | 125/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.54 (699.6) | 23.89 (606.8) | -3.65 (-92.8) -13.3% |
| Width inches (mm) | 6.1 (155) | 4.92 (125) | -1.18 (-30) -19.4% |
| Circum. inches (mm) | 86.53 (2197.86) | 75.05 (1906.32) | -11.48 (-291.54) -13.3% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 3.44 (87.5) | -0.83 (-21) -19.4% |
| Revolutions per mile (km) | 732.23 (454.99) | 844.22 (524.57) | 111.98 (69.58) 15.3% |
125/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.35 mph (27.92 km/h) |
| 25 mph (40.23 km/h) | 21.68 mph (34.9 km/h) |
| 30 mph (48.28 km/h) | 26.02 mph (41.88 km/h) |
| 35 mph (56.33 km/h) | 30.36 mph (48.86 km/h) |
| 40 mph (64.37 km/h) | 34.69 mph (55.83 km/h) |
| 45 mph (72.42 km/h) | 39.03 mph (62.81 km/h) |
| 50 mph (80.47 km/h) | 43.37 mph (69.79 km/h) |
| 55 mph (88.51 km/h) | 47.7 mph (76.77 km/h) |
| 60 mph (96.56 km/h) | 52.04 mph (83.75 km/h) |
| 65 mph (104.61 km/h) | 56.38 mph (90.73 km/h) |
| 70 mph (112.65 km/h) | 60.71 mph (97.71 km/h) |
| 75 mph (120.7 km/h) | 65.05 mph (104.69 km/h) |
| 80 mph (128.75 km/h) | 69.39 mph (111.67 km/h) |
| 85 mph (136.79 km/h) | 73.72 mph (118.65 km/h) |
| 90 mph (144.84 km/h) | 78.06 mph (125.63 km/h) |
| 95 mph (152.89 km/h) | 82.4 mph (132.61 km/h) |
| 100 mph (160.93 km/h) | 86.74 mph (139.59 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2148 | 2496 | 2688 | 2807 | 2935 | 3026 | 3127 | 3245 | 3410 | 3575 | 3757 | 3904 | 4169 | 4461 | 4690 | 4836 | 4918 | 5220 | 5641 | 6555 |
Better Fuel Economy Factory Ratios Increased Power
