Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-17 | 225/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.73 (831.3) | 32.94 (836.8) | 0.22 (5.5) 0.7% |
| Width inches (mm) | 9.25 (235) | 8.86 (225) | -0.39 (-10) -4.3% |
| Circum. inches (mm) | 102.82 (2611.61) | 103.5 (2628.88) | 0.68 (17.28) 0.7% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 7.97 (202.5) | 0.11 (2.75) 1.4% |
| Revolutions per mile (km) | 616.23 (382.91) | 612.18 (380.39) | -4.05 (-2.52) -0.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.13 mph (32.4 km/h) |
| 25 mph (40.23 km/h) | 25.17 mph (40.5 km/h) |
| 30 mph (48.28 km/h) | 30.2 mph (48.6 km/h) |
| 35 mph (56.33 km/h) | 35.23 mph (56.7 km/h) |
| 40 mph (64.37 km/h) | 40.26 mph (64.8 km/h) |
| 45 mph (72.42 km/h) | 45.3 mph (72.9 km/h) |
| 50 mph (80.47 km/h) | 50.33 mph (81 km/h) |
| 55 mph (88.51 km/h) | 55.36 mph (89.1 km/h) |
| 60 mph (96.56 km/h) | 60.4 mph (97.2 km/h) |
| 65 mph (104.61 km/h) | 65.43 mph (105.3 km/h) |
| 70 mph (112.65 km/h) | 70.46 mph (113.4 km/h) |
| 75 mph (120.7 km/h) | 75.5 mph (121.5 km/h) |
| 80 mph (128.75 km/h) | 80.53 mph (129.6 km/h) |
| 85 mph (136.79 km/h) | 85.56 mph (137.7 km/h) |
| 90 mph (144.84 km/h) | 90.6 mph (145.8 km/h) |
| 95 mph (152.89 km/h) | 95.63 mph (153.9 km/h) |
| 100 mph (160.93 km/h) | 100.66 mph (162 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1558 | 1810 | 1949 | 2035 | 2128 | 2194 | 2267 | 2353 | 2473 | 2592 | 2725 | 2831 | 3023 | 3235 | 3401 | 3507 | 3567 | 3785 | 4090 | 4753 |
Better Fuel Economy Factory Ratios Increased Power
