Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-15 | 135/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.87 (581) | 23.5 (597) | 0.63 (16) 2.8% |
| Width inches (mm) | 4.92 (125) | 5.31 (135) | 0.39 (10) 8% |
| Circum. inches (mm) | 71.86 (1825.27) | 73.84 (1875.53) | 1.98 (50.27) 2.8% |
| Sidewall Height inches (mm) | 3.94 (100) | 4.25 (108) | 0.31 (8) 8% |
| Revolutions per mile (km) | 881.7 (547.86) | 858.07 (533.18) | -23.63 (-14.68) -2.7% |
135/80-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.55 mph (33.07 km/h) |
| 25 mph (40.23 km/h) | 25.69 mph (41.34 km/h) |
| 30 mph (48.28 km/h) | 30.83 mph (49.61 km/h) |
| 35 mph (56.33 km/h) | 35.96 mph (57.88 km/h) |
| 40 mph (64.37 km/h) | 41.1 mph (66.15 km/h) |
| 45 mph (72.42 km/h) | 46.24 mph (74.41 km/h) |
| 50 mph (80.47 km/h) | 51.38 mph (82.68 km/h) |
| 55 mph (88.51 km/h) | 56.51 mph (90.95 km/h) |
| 60 mph (96.56 km/h) | 61.65 mph (99.22 km/h) |
| 65 mph (104.61 km/h) | 66.79 mph (107.49 km/h) |
| 70 mph (112.65 km/h) | 71.93 mph (115.76 km/h) |
| 75 mph (120.7 km/h) | 77.07 mph (124.02 km/h) |
| 80 mph (128.75 km/h) | 82.2 mph (132.29 km/h) |
| 85 mph (136.79 km/h) | 87.34 mph (140.56 km/h) |
| 90 mph (144.84 km/h) | 92.48 mph (148.83 km/h) |
| 95 mph (152.89 km/h) | 97.62 mph (157.1 km/h) |
| 100 mph (160.93 km/h) | 102.75 mph (165.37 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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