Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-12 | 165/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.54 (521.8) | 21.44 (544.7) | 0.9 (22.9) 4.4% |
| Width inches (mm) | 6.1 (155) | 6.5 (165) | 0.39 (10) 6.5% |
| Circum. inches (mm) | 64.54 (1639.28) | 67.37 (1711.23) | 2.83 (71.94) 4.4% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 4.22 (107.25) | -0.05 (-1.25) -1.2% |
| Revolutions per mile (km) | 981.74 (610.02) | 940.46 (584.38) | -41.27 (-25.65) -4.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.88 mph (33.6 km/h) |
| 25 mph (40.23 km/h) | 26.1 mph (42 km/h) |
| 30 mph (48.28 km/h) | 31.32 mph (50.4 km/h) |
| 35 mph (56.33 km/h) | 36.54 mph (58.8 km/h) |
| 40 mph (64.37 km/h) | 41.76 mph (67.2 km/h) |
| 45 mph (72.42 km/h) | 46.97 mph (75.6 km/h) |
| 50 mph (80.47 km/h) | 52.19 mph (84 km/h) |
| 55 mph (88.51 km/h) | 57.41 mph (92.4 km/h) |
| 60 mph (96.56 km/h) | 62.63 mph (100.8 km/h) |
| 65 mph (104.61 km/h) | 67.85 mph (109.2 km/h) |
| 70 mph (112.65 km/h) | 73.07 mph (117.6 km/h) |
| 75 mph (120.7 km/h) | 78.29 mph (126 km/h) |
| 80 mph (128.75 km/h) | 83.51 mph (134.4 km/h) |
| 85 mph (136.79 km/h) | 88.73 mph (142.8 km/h) |
| 90 mph (144.84 km/h) | 93.95 mph (151.2 km/h) |
| 95 mph (152.89 km/h) | 99.17 mph (159.6 km/h) |
| 100 mph (160.93 km/h) | 104.39 mph (168 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
