Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/60-20 | 235/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.85 (682) | 26.48 (672.5) | -0.37 (-9.5) -1.4% |
| Width inches (mm) | 5.71 (145) | 9.25 (235) | 3.54 (90) 62.1% |
| Circum. inches (mm) | 84.35 (2142.57) | 83.18 (2112.72) | -1.18 (-29.85) -1.4% |
| Sidewall Height inches (mm) | 3.43 (87) | 3.24 (82.25) | -0.19 (-4.75) -5.5% |
| Revolutions per mile (km) | 751.13 (466.73) | 761.74 (473.32) | 10.61 (6.59) 1.4% |
235/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.72 mph (31.74 km/h) |
| 25 mph (40.23 km/h) | 24.65 mph (39.67 km/h) |
| 30 mph (48.28 km/h) | 29.58 mph (47.61 km/h) |
| 35 mph (56.33 km/h) | 34.51 mph (55.54 km/h) |
| 40 mph (64.37 km/h) | 39.44 mph (63.48 km/h) |
| 45 mph (72.42 km/h) | 44.37 mph (71.41 km/h) |
| 50 mph (80.47 km/h) | 49.3 mph (79.35 km/h) |
| 55 mph (88.51 km/h) | 54.23 mph (87.28 km/h) |
| 60 mph (96.56 km/h) | 59.16 mph (95.22 km/h) |
| 65 mph (104.61 km/h) | 64.09 mph (103.15 km/h) |
| 70 mph (112.65 km/h) | 69.02 mph (111.09 km/h) |
| 75 mph (120.7 km/h) | 73.96 mph (119.02 km/h) |
| 80 mph (128.75 km/h) | 78.89 mph (126.95 km/h) |
| 85 mph (136.79 km/h) | 83.82 mph (134.89 km/h) |
| 90 mph (144.84 km/h) | 88.75 mph (142.82 km/h) |
| 95 mph (152.89 km/h) | 93.68 mph (150.76 km/h) |
| 100 mph (160.93 km/h) | 98.61 mph (158.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1938 | 2252 | 2425 | 2532 | 2648 | 2730 | 2821 | 2928 | 3077 | 3225 | 3390 | 3522 | 3761 | 4025 | 4232 | 4364 | 4438 | 4710 | 5090 | 5914 |
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