Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-15 | 135/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.85 (555) | 23.5 (597) | 1.65 (42) 7.6% |
| Width inches (mm) | 5.71 (145) | 5.31 (135) | -0.39 (-10) -6.9% |
| Circum. inches (mm) | 68.65 (1743.58) | 73.84 (1875.53) | 5.19 (131.95) 7.6% |
| Sidewall Height inches (mm) | 3.43 (87) | 4.25 (108) | 0.83 (21) 24.1% |
| Revolutions per mile (km) | 923.01 (573.53) | 858.07 (533.18) | -64.94 (-40.35) -7% |
135/80-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.51 mph (34.62 km/h) |
| 25 mph (40.23 km/h) | 26.89 mph (43.28 km/h) |
| 30 mph (48.28 km/h) | 32.27 mph (51.93 km/h) |
| 35 mph (56.33 km/h) | 37.65 mph (60.59 km/h) |
| 40 mph (64.37 km/h) | 43.03 mph (69.25 km/h) |
| 45 mph (72.42 km/h) | 48.41 mph (77.9 km/h) |
| 50 mph (80.47 km/h) | 53.78 mph (86.56 km/h) |
| 55 mph (88.51 km/h) | 59.16 mph (95.21 km/h) |
| 60 mph (96.56 km/h) | 64.54 mph (103.87 km/h) |
| 65 mph (104.61 km/h) | 69.92 mph (112.52 km/h) |
| 70 mph (112.65 km/h) | 75.3 mph (121.18 km/h) |
| 75 mph (120.7 km/h) | 80.68 mph (129.84 km/h) |
| 80 mph (128.75 km/h) | 86.05 mph (138.49 km/h) |
| 85 mph (136.79 km/h) | 91.43 mph (147.15 km/h) |
| 90 mph (144.84 km/h) | 96.81 mph (155.8 km/h) |
| 95 mph (152.89 km/h) | 102.19 mph (164.46 km/h) |
| 100 mph (160.93 km/h) | 107.57 mph (173.11 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 |
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