Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/40-20 | 235/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.4 (696) | 26.48 (672.5) | -0.93 (-23.5) -3.4% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 86.08 (2186.55) | 83.18 (2112.72) | -2.91 (-73.83) -3.4% |
| Sidewall Height inches (mm) | 3.7 (94) | 3.24 (82.25) | -0.46 (-11.75) -12.5% |
| Revolutions per mile (km) | 736.02 (457.34) | 761.74 (473.32) | 25.72 (15.98) 3.5% |
235/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.32 mph (31.1 km/h) |
| 25 mph (40.23 km/h) | 24.16 mph (38.88 km/h) |
| 30 mph (48.28 km/h) | 28.99 mph (46.65 km/h) |
| 35 mph (56.33 km/h) | 33.82 mph (54.43 km/h) |
| 40 mph (64.37 km/h) | 38.65 mph (62.2 km/h) |
| 45 mph (72.42 km/h) | 43.48 mph (69.98 km/h) |
| 50 mph (80.47 km/h) | 48.31 mph (77.75 km/h) |
| 55 mph (88.51 km/h) | 53.14 mph (85.53 km/h) |
| 60 mph (96.56 km/h) | 57.97 mph (93.3 km/h) |
| 65 mph (104.61 km/h) | 62.81 mph (101.08 km/h) |
| 70 mph (112.65 km/h) | 67.64 mph (108.85 km/h) |
| 75 mph (120.7 km/h) | 72.47 mph (116.63 km/h) |
| 80 mph (128.75 km/h) | 77.3 mph (124.4 km/h) |
| 85 mph (136.79 km/h) | 82.13 mph (132.18 km/h) |
| 90 mph (144.84 km/h) | 86.96 mph (139.95 km/h) |
| 95 mph (152.89 km/h) | 91.79 mph (147.73 km/h) |
| 100 mph (160.93 km/h) | 96.62 mph (155.5 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
