Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 200/70-15 | 230/55-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.02 (661) | 27.96 (710.2) | 1.94 (49.2) 7.4% |
| Width inches (mm) | 7.87 (200) | 9.06 (230) | 1.18 (30) 15% |
| Circum. inches (mm) | 81.76 (2076.59) | 87.84 (2231.16) | 6.09 (154.57) 7.4% |
| Sidewall Height inches (mm) | 5.51 (140) | 4.98 (126.5) | -0.53 (-13.5) -9.6% |
| Revolutions per mile (km) | 774.99 (481.56) | 721.3 (448.2) | -53.69 (-33.36) -6.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.49 mph (34.58 km/h) |
| 25 mph (40.23 km/h) | 26.86 mph (43.23 km/h) |
| 30 mph (48.28 km/h) | 32.23 mph (51.87 km/h) |
| 35 mph (56.33 km/h) | 37.61 mph (60.52 km/h) |
| 40 mph (64.37 km/h) | 42.98 mph (69.17 km/h) |
| 45 mph (72.42 km/h) | 48.35 mph (77.81 km/h) |
| 50 mph (80.47 km/h) | 53.72 mph (86.46 km/h) |
| 55 mph (88.51 km/h) | 59.09 mph (95.1 km/h) |
| 60 mph (96.56 km/h) | 64.47 mph (103.75 km/h) |
| 65 mph (104.61 km/h) | 69.84 mph (112.39 km/h) |
| 70 mph (112.65 km/h) | 75.21 mph (121.04 km/h) |
| 75 mph (120.7 km/h) | 80.58 mph (129.69 km/h) |
| 80 mph (128.75 km/h) | 85.95 mph (138.33 km/h) |
| 85 mph (136.79 km/h) | 91.33 mph (146.98 km/h) |
| 90 mph (144.84 km/h) | 96.7 mph (155.62 km/h) |
| 95 mph (152.89 km/h) | 102.07 mph (164.27 km/h) |
| 100 mph (160.93 km/h) | 107.44 mph (172.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1836 | 2132 | 2296 | 2398 | 2507 | 2585 | 2671 | 2773 | 2913 | 3054 | 3210 | 3335 | 3562 | 3812 | 4007 | 4132 | 4202 | 4460 | 4819 | 5600 |
Better Fuel Economy Factory Ratios Increased Power
