Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 35/12.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 35.03 (889.72) | 7.04 (178.82) 25.2% |
| Width inches (mm) | 13.98 (355) | 12.52 (318) | -1.46 (-37) -10.4% |
| Circum. inches (mm) | 87.93 (2233.36) | 110.04 (2795.14) | 22.12 (561.78) 25.2% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 9.01 (228.96) | 5.52 (140.21) 158% |
| Revolutions per mile (km) | 720.59 (447.76) | 575.77 (357.76) | -144.83 (-89.99) -20.1% |
35/12.5-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.03 mph (40.28 km/h) |
| 25 mph (40.23 km/h) | 31.29 mph (50.35 km/h) |
| 30 mph (48.28 km/h) | 37.55 mph (60.42 km/h) |
| 35 mph (56.33 km/h) | 43.8 mph (70.5 km/h) |
| 40 mph (64.37 km/h) | 50.06 mph (80.57 km/h) |
| 45 mph (72.42 km/h) | 56.32 mph (90.64 km/h) |
| 50 mph (80.47 km/h) | 62.58 mph (100.71 km/h) |
| 55 mph (88.51 km/h) | 68.83 mph (110.78 km/h) |
| 60 mph (96.56 km/h) | 75.09 mph (120.85 km/h) |
| 65 mph (104.61 km/h) | 81.35 mph (130.92 km/h) |
| 70 mph (112.65 km/h) | 87.61 mph (140.99 km/h) |
| 75 mph (120.7 km/h) | 93.87 mph (151.06 km/h) |
| 80 mph (128.75 km/h) | 100.12 mph (161.13 km/h) |
| 85 mph (136.79 km/h) | 106.38 mph (171.2 km/h) |
| 90 mph (144.84 km/h) | 112.64 mph (181.27 km/h) |
| 95 mph (152.89 km/h) | 118.9 mph (191.35 km/h) |
| 100 mph (160.93 km/h) | 125.15 mph (201.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1465 | 1702 | 1833 | 1914 | 2001 | 2064 | 2132 | 2213 | 2326 | 2438 | 2563 | 2662 | 2843 | 3043 | 3199 | 3298 | 3354 | 3560 | 3847 | 4470 |
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