Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-16 | 235/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.57 (649.4) | 30.8 (782.4) | 5.24 (133) 20.5% |
| Width inches (mm) | 5.31 (135) | 9.25 (235) | 3.94 (100) 74.1% |
| Circum. inches (mm) | 80.32 (2040.15) | 96.77 (2457.98) | 16.45 (417.83) 20.5% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 7.4 (188) | 2.62 (66.5) 54.7% |
| Revolutions per mile (km) | 788.84 (490.16) | 654.74 (406.84) | -134.09 (-83.32) -17% |
235/80-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.1 mph (38.78 km/h) |
| 25 mph (40.23 km/h) | 30.12 mph (48.47 km/h) |
| 30 mph (48.28 km/h) | 36.14 mph (58.17 km/h) |
| 35 mph (56.33 km/h) | 42.17 mph (67.86 km/h) |
| 40 mph (64.37 km/h) | 48.19 mph (77.56 km/h) |
| 45 mph (72.42 km/h) | 54.22 mph (87.25 km/h) |
| 50 mph (80.47 km/h) | 60.24 mph (96.95 km/h) |
| 55 mph (88.51 km/h) | 66.26 mph (106.64 km/h) |
| 60 mph (96.56 km/h) | 72.29 mph (116.34 km/h) |
| 65 mph (104.61 km/h) | 78.31 mph (126.03 km/h) |
| 70 mph (112.65 km/h) | 84.34 mph (135.73 km/h) |
| 75 mph (120.7 km/h) | 90.36 mph (145.42 km/h) |
| 80 mph (128.75 km/h) | 96.38 mph (155.12 km/h) |
| 85 mph (136.79 km/h) | 102.41 mph (164.81 km/h) |
| 90 mph (144.84 km/h) | 108.43 mph (174.51 km/h) |
| 95 mph (152.89 km/h) | 114.46 mph (184.2 km/h) |
| 100 mph (160.93 km/h) | 120.48 mph (193.89 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1666 | 1936 | 2085 | 2177 | 2276 | 2347 | 2425 | 2517 | 2645 | 2772 | 2914 | 3028 | 3233 | 3460 | 3637 | 3751 | 3815 | 4048 | 4375 | 5084 |
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