Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/75-15 | 170/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.27 (591) | 23.7 (602) | 0.43 (11) 1.9% |
| Width inches (mm) | 5.51 (140) | 6.69 (170) | 1.18 (30) 21.4% |
| Circum. inches (mm) | 73.1 (1856.68) | 74.46 (1891.24) | 1.36 (34.56) 1.9% |
| Sidewall Height inches (mm) | 4.13 (105) | 4.35 (110.5) | 0.22 (5.5) 5.2% |
| Revolutions per mile (km) | 866.79 (538.59) | 850.95 (528.75) | -15.84 (-9.84) -1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.37 mph (32.79 km/h) |
| 25 mph (40.23 km/h) | 25.47 mph (40.98 km/h) |
| 30 mph (48.28 km/h) | 30.56 mph (49.18 km/h) |
| 35 mph (56.33 km/h) | 35.65 mph (57.38 km/h) |
| 40 mph (64.37 km/h) | 40.74 mph (65.57 km/h) |
| 45 mph (72.42 km/h) | 45.84 mph (73.77 km/h) |
| 50 mph (80.47 km/h) | 50.93 mph (81.97 km/h) |
| 55 mph (88.51 km/h) | 56.02 mph (90.16 km/h) |
| 60 mph (96.56 km/h) | 61.12 mph (98.36 km/h) |
| 65 mph (104.61 km/h) | 66.21 mph (106.55 km/h) |
| 70 mph (112.65 km/h) | 71.3 mph (114.75 km/h) |
| 75 mph (120.7 km/h) | 76.4 mph (122.95 km/h) |
| 80 mph (128.75 km/h) | 81.49 mph (131.14 km/h) |
| 85 mph (136.79 km/h) | 86.58 mph (139.34 km/h) |
| 90 mph (144.84 km/h) | 91.68 mph (147.54 km/h) |
| 95 mph (152.89 km/h) | 96.77 mph (155.73 km/h) |
| 100 mph (160.93 km/h) | 101.86 mph (163.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2165 | 2516 | 2709 | 2829 | 2958 | 3050 | 3151 | 3271 | 3437 | 3603 | 3787 | 3935 | 4202 | 4497 | 4727 | 4875 | 4958 | 5262 | 5686 | 6607 |
Better Fuel Economy Factory Ratios Increased Power
