Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/30-20 | 235/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.79 (655) | 26.48 (672.5) | 0.69 (17.5) 2.7% |
| Width inches (mm) | 9.65 (245) | 9.25 (235) | -0.39 (-10) -4.1% |
| Circum. inches (mm) | 81.01 (2057.74) | 83.18 (2112.72) | 2.16 (54.98) 2.7% |
| Sidewall Height inches (mm) | 2.89 (73.5) | 3.24 (82.25) | 0.34 (8.75) 11.9% |
| Revolutions per mile (km) | 782.09 (485.97) | 761.74 (473.32) | -20.35 (-12.65) -2.6% |
235/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.53 mph (33.05 km/h) |
| 25 mph (40.23 km/h) | 25.67 mph (41.31 km/h) |
| 30 mph (48.28 km/h) | 30.8 mph (49.57 km/h) |
| 35 mph (56.33 km/h) | 35.94 mph (57.83 km/h) |
| 40 mph (64.37 km/h) | 41.07 mph (66.09 km/h) |
| 45 mph (72.42 km/h) | 46.2 mph (74.36 km/h) |
| 50 mph (80.47 km/h) | 51.34 mph (82.62 km/h) |
| 55 mph (88.51 km/h) | 56.47 mph (90.88 km/h) |
| 60 mph (96.56 km/h) | 61.6 mph (99.14 km/h) |
| 65 mph (104.61 km/h) | 66.74 mph (107.4 km/h) |
| 70 mph (112.65 km/h) | 71.87 mph (115.66 km/h) |
| 75 mph (120.7 km/h) | 77 mph (123.93 km/h) |
| 80 mph (128.75 km/h) | 82.14 mph (132.19 km/h) |
| 85 mph (136.79 km/h) | 87.27 mph (140.45 km/h) |
| 90 mph (144.84 km/h) | 92.4 mph (148.71 km/h) |
| 95 mph (152.89 km/h) | 97.54 mph (156.97 km/h) |
| 100 mph (160.93 km/h) | 102.67 mph (165.23 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 |
Better Fuel Economy Factory Ratios Increased Power
