Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-12 | 155/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.54 (521.8) | 20.93 (531.7) | 0.39 (9.9) 1.9% |
| Width inches (mm) | 6.1 (155) | 6.1 (155) | 0 (0) 0% |
| Circum. inches (mm) | 64.54 (1639.28) | 65.76 (1670.38) | 1.22 (31.1) 1.9% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 3.97 (100.75) | -0.31 (-7.75) -7.1% |
| Revolutions per mile (km) | 981.74 (610.02) | 963.46 (598.66) | -18.28 (-11.36) -1.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.38 mph (32.8 km/h) |
| 25 mph (40.23 km/h) | 25.47 mph (41 km/h) |
| 30 mph (48.28 km/h) | 30.57 mph (49.2 km/h) |
| 35 mph (56.33 km/h) | 35.66 mph (57.4 km/h) |
| 40 mph (64.37 km/h) | 40.76 mph (65.6 km/h) |
| 45 mph (72.42 km/h) | 45.85 mph (73.79 km/h) |
| 50 mph (80.47 km/h) | 50.95 mph (81.99 km/h) |
| 55 mph (88.51 km/h) | 56.04 mph (90.19 km/h) |
| 60 mph (96.56 km/h) | 61.14 mph (98.39 km/h) |
| 65 mph (104.61 km/h) | 66.23 mph (106.59 km/h) |
| 70 mph (112.65 km/h) | 71.33 mph (114.79 km/h) |
| 75 mph (120.7 km/h) | 76.42 mph (122.99 km/h) |
| 80 mph (128.75 km/h) | 81.52 mph (131.19 km/h) |
| 85 mph (136.79 km/h) | 86.61 mph (139.39 km/h) |
| 90 mph (144.84 km/h) | 91.71 mph (147.59 km/h) |
| 95 mph (152.89 km/h) | 96.8 mph (155.79 km/h) |
| 100 mph (160.93 km/h) | 101.9 mph (163.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
