Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 155/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 24.76 (629) | 0.2 (5) 0.8% |
| Width inches (mm) | 5.31 (135) | 6.1 (155) | 0.79 (20) 14.8% |
| Circum. inches (mm) | 77.18 (1960.35) | 77.8 (1976.06) | 0.62 (15.71) 0.8% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 4.88 (124) | 0.1 (2.5) 2.1% |
| Revolutions per mile (km) | 820.95 (510.11) | 814.42 (506.06) | -6.53 (-4.05) -0.8% |
155/80-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.16 mph (32.44 km/h) |
| 25 mph (40.23 km/h) | 25.2 mph (40.56 km/h) |
| 30 mph (48.28 km/h) | 30.24 mph (48.67 km/h) |
| 35 mph (56.33 km/h) | 35.28 mph (56.78 km/h) |
| 40 mph (64.37 km/h) | 40.32 mph (64.89 km/h) |
| 45 mph (72.42 km/h) | 45.36 mph (73 km/h) |
| 50 mph (80.47 km/h) | 50.4 mph (81.11 km/h) |
| 55 mph (88.51 km/h) | 55.44 mph (89.22 km/h) |
| 60 mph (96.56 km/h) | 60.48 mph (97.33 km/h) |
| 65 mph (104.61 km/h) | 65.52 mph (105.45 km/h) |
| 70 mph (112.65 km/h) | 70.56 mph (113.56 km/h) |
| 75 mph (120.7 km/h) | 75.6 mph (121.67 km/h) |
| 80 mph (128.75 km/h) | 80.64 mph (129.78 km/h) |
| 85 mph (136.79 km/h) | 85.68 mph (137.89 km/h) |
| 90 mph (144.84 km/h) | 90.72 mph (146 km/h) |
| 95 mph (152.89 km/h) | 95.76 mph (154.11 km/h) |
| 100 mph (160.93 km/h) | 100.8 mph (162.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2073 | 2408 | 2593 | 2708 | 2831 | 2919 | 3016 | 3131 | 3290 | 3448 | 3625 | 3766 | 4022 | 4304 | 4524 | 4665 | 4745 | 5036 | 5442 | 6323 |
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