Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/30-14 | 235/40-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.31 (490.6) | 21.4 (543.6) | 2.09 (53) 10.8% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 60.68 (1541.27) | 67.24 (1707.77) | 6.56 (166.5) 10.8% |
| Sidewall Height inches (mm) | 2.66 (67.5) | 3.7 (94) | 1.04 (26.5) 39.3% |
| Revolutions per mile (km) | 1044.17 (648.82) | 942.37 (585.56) | -101.8 (-63.26) -9.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.16 mph (35.66 km/h) |
| 25 mph (40.23 km/h) | 27.7 mph (44.58 km/h) |
| 30 mph (48.28 km/h) | 33.24 mph (53.5 km/h) |
| 35 mph (56.33 km/h) | 38.78 mph (62.41 km/h) |
| 40 mph (64.37 km/h) | 44.32 mph (71.33 km/h) |
| 45 mph (72.42 km/h) | 49.86 mph (80.24 km/h) |
| 50 mph (80.47 km/h) | 55.4 mph (89.16 km/h) |
| 55 mph (88.51 km/h) | 60.94 mph (98.08 km/h) |
| 60 mph (96.56 km/h) | 66.48 mph (106.99 km/h) |
| 65 mph (104.61 km/h) | 72.02 mph (115.91 km/h) |
| 70 mph (112.65 km/h) | 77.56 mph (124.82 km/h) |
| 75 mph (120.7 km/h) | 83.1 mph (133.74 km/h) |
| 80 mph (128.75 km/h) | 88.64 mph (142.66 km/h) |
| 85 mph (136.79 km/h) | 94.18 mph (151.57 km/h) |
| 90 mph (144.84 km/h) | 99.72 mph (160.49 km/h) |
| 95 mph (152.89 km/h) | 105.26 mph (169.4 km/h) |
| 100 mph (160.93 km/h) | 110.8 mph (178.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
