Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-17 | 375/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.73 (831.3) | 41.1 (1043.9) | 8.37 (212.6) 25.6% |
| Width inches (mm) | 9.25 (235) | 14.76 (375) | 5.51 (140) 59.6% |
| Circum. inches (mm) | 102.82 (2611.61) | 129.11 (3279.51) | 26.3 (667.9) 25.6% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 12.55 (318.75) | 4.69 (119) 59.6% |
| Revolutions per mile (km) | 616.23 (382.91) | 490.73 (304.92) | -125.5 (-77.98) -20.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.11 mph (40.42 km/h) |
| 25 mph (40.23 km/h) | 31.39 mph (50.52 km/h) |
| 30 mph (48.28 km/h) | 37.67 mph (60.63 km/h) |
| 35 mph (56.33 km/h) | 43.95 mph (70.73 km/h) |
| 40 mph (64.37 km/h) | 50.23 mph (80.84 km/h) |
| 45 mph (72.42 km/h) | 56.51 mph (90.94 km/h) |
| 50 mph (80.47 km/h) | 62.79 mph (101.05 km/h) |
| 55 mph (88.51 km/h) | 69.07 mph (111.15 km/h) |
| 60 mph (96.56 km/h) | 75.34 mph (121.26 km/h) |
| 65 mph (104.61 km/h) | 81.62 mph (131.36 km/h) |
| 70 mph (112.65 km/h) | 87.9 mph (141.46 km/h) |
| 75 mph (120.7 km/h) | 94.18 mph (151.57 km/h) |
| 80 mph (128.75 km/h) | 100.46 mph (161.67 km/h) |
| 85 mph (136.79 km/h) | 106.74 mph (171.78 km/h) |
| 90 mph (144.84 km/h) | 113.02 mph (181.88 km/h) |
| 95 mph (152.89 km/h) | 119.3 mph (191.99 km/h) |
| 100 mph (160.93 km/h) | 125.57 mph (202.09 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1249 | 1451 | 1562 | 1631 | 1706 | 1759 | 1817 | 1886 | 1982 | 2078 | 2184 | 2269 | 2423 | 2593 | 2726 | 2811 | 2859 | 3034 | 3279 | 3810 |
Better Fuel Economy Factory Ratios Increased Power
