Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-20 | 235/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.09 (688) | 26.48 (672.5) | -0.61 (-15.5) -2.3% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 85.1 (2161.42) | 83.18 (2112.72) | -1.92 (-48.69) -2.3% |
| Sidewall Height inches (mm) | 3.54 (90) | 3.24 (82.25) | -0.31 (-7.75) -8.6% |
| Revolutions per mile (km) | 744.58 (462.66) | 761.74 (473.32) | 17.16 (10.66) 2.3% |
235/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.55 mph (31.46 km/h) |
| 25 mph (40.23 km/h) | 24.44 mph (39.33 km/h) |
| 30 mph (48.28 km/h) | 29.32 mph (47.19 km/h) |
| 35 mph (56.33 km/h) | 34.21 mph (55.06 km/h) |
| 40 mph (64.37 km/h) | 39.1 mph (62.92 km/h) |
| 45 mph (72.42 km/h) | 43.99 mph (70.79 km/h) |
| 50 mph (80.47 km/h) | 48.87 mph (78.65 km/h) |
| 55 mph (88.51 km/h) | 53.76 mph (86.52 km/h) |
| 60 mph (96.56 km/h) | 58.65 mph (94.39 km/h) |
| 65 mph (104.61 km/h) | 63.54 mph (102.25 km/h) |
| 70 mph (112.65 km/h) | 68.42 mph (110.12 km/h) |
| 75 mph (120.7 km/h) | 73.31 mph (117.98 km/h) |
| 80 mph (128.75 km/h) | 78.2 mph (125.85 km/h) |
| 85 mph (136.79 km/h) | 83.09 mph (133.71 km/h) |
| 90 mph (144.84 km/h) | 87.97 mph (141.58 km/h) |
| 95 mph (152.89 km/h) | 92.86 mph (149.44 km/h) |
| 100 mph (160.93 km/h) | 97.75 mph (157.31 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
