Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-13 | 165/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.44 (519.2) | 23.39 (594.2) | 2.95 (75) 14.4% |
| Width inches (mm) | 5.31 (135) | 6.5 (165) | 1.18 (30) 22.2% |
| Circum. inches (mm) | 64.22 (1631.11) | 73.49 (1866.73) | 9.28 (235.62) 14.4% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 5.2 (132) | 1.48 (37.5) 39.7% |
| Revolutions per mile (km) | 986.65 (613.08) | 862.12 (535.69) | -124.54 (-77.38) -12.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.89 mph (36.84 km/h) |
| 25 mph (40.23 km/h) | 28.61 mph (46.05 km/h) |
| 30 mph (48.28 km/h) | 34.33 mph (55.25 km/h) |
| 35 mph (56.33 km/h) | 40.06 mph (64.46 km/h) |
| 40 mph (64.37 km/h) | 45.78 mph (73.67 km/h) |
| 45 mph (72.42 km/h) | 51.5 mph (82.88 km/h) |
| 50 mph (80.47 km/h) | 57.22 mph (92.09 km/h) |
| 55 mph (88.51 km/h) | 62.94 mph (101.3 km/h) |
| 60 mph (96.56 km/h) | 68.67 mph (110.51 km/h) |
| 65 mph (104.61 km/h) | 74.39 mph (119.72 km/h) |
| 70 mph (112.65 km/h) | 80.11 mph (128.93 km/h) |
| 75 mph (120.7 km/h) | 85.83 mph (138.14 km/h) |
| 80 mph (128.75 km/h) | 91.56 mph (147.35 km/h) |
| 85 mph (136.79 km/h) | 97.28 mph (156.55 km/h) |
| 90 mph (144.84 km/h) | 103 mph (165.76 km/h) |
| 95 mph (152.89 km/h) | 108.72 mph (174.97 km/h) |
| 100 mph (160.93 km/h) | 114.45 mph (184.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2194 | 2549 | 2745 | 2866 | 2997 | 3090 | 3193 | 3314 | 3482 | 3650 | 3837 | 3986 | 4257 | 4556 | 4789 | 4939 | 5023 | 5331 | 5760 | 6694 |
Better Fuel Economy Factory Ratios Increased Power
