Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-14 | 235/45-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.09 (535.6) | 22.33 (567.1) | 1.24 (31.5) 5.9% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 66.25 (1682.64) | 70.14 (1781.6) | 3.9 (98.96) 5.9% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.16 (105.75) | 0.62 (15.75) 17.5% |
| Revolutions per mile (km) | 956.44 (594.3) | 903.32 (561.29) | -53.13 (-33.01) -5.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.18 mph (34.08 km/h) |
| 25 mph (40.23 km/h) | 26.47 mph (42.6 km/h) |
| 30 mph (48.28 km/h) | 31.76 mph (51.12 km/h) |
| 35 mph (56.33 km/h) | 37.06 mph (59.64 km/h) |
| 40 mph (64.37 km/h) | 42.35 mph (68.16 km/h) |
| 45 mph (72.42 km/h) | 47.65 mph (76.68 km/h) |
| 50 mph (80.47 km/h) | 52.94 mph (85.2 km/h) |
| 55 mph (88.51 km/h) | 58.23 mph (93.72 km/h) |
| 60 mph (96.56 km/h) | 63.53 mph (102.24 km/h) |
| 65 mph (104.61 km/h) | 68.82 mph (110.76 km/h) |
| 70 mph (112.65 km/h) | 74.12 mph (119.28 km/h) |
| 75 mph (120.7 km/h) | 79.41 mph (127.8 km/h) |
| 80 mph (128.75 km/h) | 84.71 mph (136.32 km/h) |
| 85 mph (136.79 km/h) | 90 mph (144.84 km/h) |
| 90 mph (144.84 km/h) | 95.29 mph (153.36 km/h) |
| 95 mph (152.89 km/h) | 100.59 mph (161.88 km/h) |
| 100 mph (160.93 km/h) | 105.88 mph (170.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2299 | 2670 | 2876 | 3003 | 3140 | 3238 | 3345 | 3473 | 3649 | 3825 | 4020 | 4177 | 4461 | 4774 | 5018 | 5175 | 5263 | 5586 | 6035 | 7014 |
Better Fuel Economy Factory Ratios Increased Power
