Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/70-15 | 135/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.89 (556) | 23.5 (597) | 1.61 (41) 7.4% |
| Width inches (mm) | 4.92 (125) | 5.31 (135) | 0.39 (10) 8% |
| Circum. inches (mm) | 68.77 (1746.73) | 73.84 (1875.53) | 5.07 (128.81) 7.4% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 4.25 (108) | 0.81 (20.5) 23.4% |
| Revolutions per mile (km) | 921.35 (572.5) | 858.07 (533.18) | -63.28 (-39.32) -6.9% |
135/80-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.47 mph (34.56 km/h) |
| 25 mph (40.23 km/h) | 26.84 mph (43.2 km/h) |
| 30 mph (48.28 km/h) | 32.21 mph (51.84 km/h) |
| 35 mph (56.33 km/h) | 37.58 mph (60.48 km/h) |
| 40 mph (64.37 km/h) | 42.95 mph (69.12 km/h) |
| 45 mph (72.42 km/h) | 48.32 mph (77.76 km/h) |
| 50 mph (80.47 km/h) | 53.69 mph (86.4 km/h) |
| 55 mph (88.51 km/h) | 59.06 mph (95.04 km/h) |
| 60 mph (96.56 km/h) | 64.42 mph (103.68 km/h) |
| 65 mph (104.61 km/h) | 69.79 mph (112.32 km/h) |
| 70 mph (112.65 km/h) | 75.16 mph (120.96 km/h) |
| 75 mph (120.7 km/h) | 80.53 mph (129.6 km/h) |
| 80 mph (128.75 km/h) | 85.9 mph (138.24 km/h) |
| 85 mph (136.79 km/h) | 91.27 mph (146.88 km/h) |
| 90 mph (144.84 km/h) | 96.64 mph (155.52 km/h) |
| 95 mph (152.89 km/h) | 102.01 mph (164.16 km/h) |
| 100 mph (160.93 km/h) | 107.37 mph (172.8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2184 | 2537 | 2732 | 2853 | 2983 | 3076 | 3178 | 3299 | 3466 | 3633 | 3819 | 3968 | 4237 | 4535 | 4767 | 4915 | 4999 | 5306 | 5733 | 6662 |
Better Fuel Economy Factory Ratios Increased Power
