Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-15 | 155/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.54 (598) | 22.76 (578.2) | -0.78 (-19.8) -3.3% |
| Width inches (mm) | 6.1 (155) | 6.1 (155) | 0 (0) 0% |
| Circum. inches (mm) | 73.96 (1878.67) | 71.51 (1816.47) | -2.45 (-62.2) -3.3% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 4.88 (124) | 0.61 (15.5) 14.3% |
| Revolutions per mile (km) | 856.64 (532.29) | 885.97 (550.52) | 29.33 (18.23) 3.4% |
155/80-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.34 mph (31.12 km/h) |
| 25 mph (40.23 km/h) | 24.17 mph (38.9 km/h) |
| 30 mph (48.28 km/h) | 29.01 mph (46.68 km/h) |
| 35 mph (56.33 km/h) | 33.84 mph (54.46 km/h) |
| 40 mph (64.37 km/h) | 38.68 mph (62.24 km/h) |
| 45 mph (72.42 km/h) | 43.51 mph (70.02 km/h) |
| 50 mph (80.47 km/h) | 48.34 mph (77.8 km/h) |
| 55 mph (88.51 km/h) | 53.18 mph (85.58 km/h) |
| 60 mph (96.56 km/h) | 58.01 mph (93.36 km/h) |
| 65 mph (104.61 km/h) | 62.85 mph (101.14 km/h) |
| 70 mph (112.65 km/h) | 67.68 mph (108.92 km/h) |
| 75 mph (120.7 km/h) | 72.52 mph (116.7 km/h) |
| 80 mph (128.75 km/h) | 77.35 mph (124.48 km/h) |
| 85 mph (136.79 km/h) | 82.19 mph (132.27 km/h) |
| 90 mph (144.84 km/h) | 87.02 mph (140.05 km/h) |
| 95 mph (152.89 km/h) | 91.85 mph (147.83 km/h) |
| 100 mph (160.93 km/h) | 96.69 mph (155.61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2255 | 2619 | 2821 | 2945 | 3080 | 3176 | 3281 | 3406 | 3579 | 3751 | 3943 | 4097 | 4375 | 4682 | 4922 | 5075 | 5162 | 5478 | 5920 | 6879 |
Better Fuel Economy Factory Ratios Increased Power
