Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/85-14 | 230/85-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.38 (670.1) | 29.39 (746.6) | 3.01 (76.5) 11.4% |
| Width inches (mm) | 7.28 (185) | 9.06 (230) | 1.77 (45) 24.3% |
| Circum. inches (mm) | 82.88 (2105.18) | 92.34 (2345.51) | 9.46 (240.33) 11.4% |
| Sidewall Height inches (mm) | 6.19 (157.25) | 7.7 (195.5) | 1.51 (38.25) 24.3% |
| Revolutions per mile (km) | 764.47 (475.02) | 686.14 (426.35) | -78.33 (-48.67) -10.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.28 mph (35.86 km/h) |
| 25 mph (40.23 km/h) | 27.85 mph (44.83 km/h) |
| 30 mph (48.28 km/h) | 33.42 mph (53.79 km/h) |
| 35 mph (56.33 km/h) | 39 mph (62.76 km/h) |
| 40 mph (64.37 km/h) | 44.57 mph (71.72 km/h) |
| 45 mph (72.42 km/h) | 50.14 mph (80.69 km/h) |
| 50 mph (80.47 km/h) | 55.71 mph (89.65 km/h) |
| 55 mph (88.51 km/h) | 61.28 mph (98.62 km/h) |
| 60 mph (96.56 km/h) | 66.85 mph (107.58 km/h) |
| 65 mph (104.61 km/h) | 72.42 mph (116.55 km/h) |
| 70 mph (112.65 km/h) | 77.99 mph (125.52 km/h) |
| 75 mph (120.7 km/h) | 83.56 mph (134.48 km/h) |
| 80 mph (128.75 km/h) | 89.13 mph (143.45 km/h) |
| 85 mph (136.79 km/h) | 94.7 mph (152.41 km/h) |
| 90 mph (144.84 km/h) | 100.27 mph (161.38 km/h) |
| 95 mph (152.89 km/h) | 105.85 mph (170.34 km/h) |
| 100 mph (160.93 km/h) | 111.42 mph (179.31 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1746 | 2028 | 2184 | 2281 | 2385 | 2459 | 2541 | 2638 | 2771 | 2905 | 3054 | 3173 | 3388 | 3626 | 3812 | 3931 | 3997 | 4243 | 4584 | 5327 |
Better Fuel Economy Factory Ratios Increased Power
