Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-12 | 165/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.76 (552.8) | 21.44 (544.7) | -0.32 (-8.1) -1.5% |
| Width inches (mm) | 6.1 (155) | 6.5 (165) | 0.39 (10) 6.5% |
| Circum. inches (mm) | 68.37 (1736.67) | 67.37 (1711.23) | -1 (-25.45) -1.5% |
| Sidewall Height inches (mm) | 4.88 (124) | 4.22 (107.25) | -0.66 (-16.75) -13.5% |
| Revolutions per mile (km) | 926.68 (575.81) | 940.46 (584.38) | 13.78 (8.56) 1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.71 mph (31.72 km/h) |
| 25 mph (40.23 km/h) | 24.63 mph (39.64 km/h) |
| 30 mph (48.28 km/h) | 29.56 mph (47.57 km/h) |
| 35 mph (56.33 km/h) | 34.49 mph (55.5 km/h) |
| 40 mph (64.37 km/h) | 39.41 mph (63.43 km/h) |
| 45 mph (72.42 km/h) | 44.34 mph (71.36 km/h) |
| 50 mph (80.47 km/h) | 49.27 mph (79.29 km/h) |
| 55 mph (88.51 km/h) | 54.19 mph (87.22 km/h) |
| 60 mph (96.56 km/h) | 59.12 mph (95.15 km/h) |
| 65 mph (104.61 km/h) | 64.05 mph (103.07 km/h) |
| 70 mph (112.65 km/h) | 68.97 mph (111 km/h) |
| 75 mph (120.7 km/h) | 73.9 mph (118.93 km/h) |
| 80 mph (128.75 km/h) | 78.83 mph (126.86 km/h) |
| 85 mph (136.79 km/h) | 83.75 mph (134.79 km/h) |
| 90 mph (144.84 km/h) | 88.68 mph (142.72 km/h) |
| 95 mph (152.89 km/h) | 93.61 mph (150.65 km/h) |
| 100 mph (160.93 km/h) | 98.53 mph (158.58 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
