Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/40-20 | 235/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.72 (704) | 26.48 (672.5) | -1.24 (-31.5) -4.5% |
| Width inches (mm) | 9.65 (245) | 9.25 (235) | -0.39 (-10) -4.1% |
| Circum. inches (mm) | 87.07 (2211.68) | 83.18 (2112.72) | -3.9 (-98.96) -4.5% |
| Sidewall Height inches (mm) | 3.86 (98) | 3.24 (82.25) | -0.62 (-15.75) -16.1% |
| Revolutions per mile (km) | 727.66 (452.14) | 761.74 (473.32) | 34.08 (21.18) 4.7% |
235/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.11 mph (30.75 km/h) |
| 25 mph (40.23 km/h) | 23.88 mph (38.43 km/h) |
| 30 mph (48.28 km/h) | 28.66 mph (46.12 km/h) |
| 35 mph (56.33 km/h) | 33.43 mph (53.81 km/h) |
| 40 mph (64.37 km/h) | 38.21 mph (61.49 km/h) |
| 45 mph (72.42 km/h) | 42.99 mph (69.18 km/h) |
| 50 mph (80.47 km/h) | 47.76 mph (76.87 km/h) |
| 55 mph (88.51 km/h) | 52.54 mph (84.55 km/h) |
| 60 mph (96.56 km/h) | 57.32 mph (92.24 km/h) |
| 65 mph (104.61 km/h) | 62.09 mph (99.93 km/h) |
| 70 mph (112.65 km/h) | 66.87 mph (107.61 km/h) |
| 75 mph (120.7 km/h) | 71.64 mph (115.3 km/h) |
| 80 mph (128.75 km/h) | 76.42 mph (122.99 km/h) |
| 85 mph (136.79 km/h) | 81.2 mph (130.67 km/h) |
| 90 mph (144.84 km/h) | 85.97 mph (138.36 km/h) |
| 95 mph (152.89 km/h) | 90.75 mph (146.05 km/h) |
| 100 mph (160.93 km/h) | 95.53 mph (153.73 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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