Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/80-17 | 255/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.8 (807.8) | 32.06 (814.3) | 0.26 (6.5) 0.8% |
| Width inches (mm) | 9.25 (235) | 10.04 (255) | 0.79 (20) 8.5% |
| Circum. inches (mm) | 99.91 (2537.78) | 100.72 (2558.2) | 0.8 (20.42) 0.8% |
| Sidewall Height inches (mm) | 7.4 (188) | 7.53 (191.25) | 0.13 (3.25) 1.7% |
| Revolutions per mile (km) | 634.15 (394.04) | 629.09 (390.9) | -5.06 (-3.15) -0.8% |
255/75-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.16 mph (32.45 km/h) |
| 25 mph (40.23 km/h) | 25.2 mph (40.56 km/h) |
| 30 mph (48.28 km/h) | 30.24 mph (48.67 km/h) |
| 35 mph (56.33 km/h) | 35.28 mph (56.78 km/h) |
| 40 mph (64.37 km/h) | 40.32 mph (64.89 km/h) |
| 45 mph (72.42 km/h) | 45.36 mph (73 km/h) |
| 50 mph (80.47 km/h) | 50.4 mph (81.11 km/h) |
| 55 mph (88.51 km/h) | 55.44 mph (89.23 km/h) |
| 60 mph (96.56 km/h) | 60.48 mph (97.34 km/h) |
| 65 mph (104.61 km/h) | 65.52 mph (105.45 km/h) |
| 70 mph (112.65 km/h) | 70.56 mph (113.56 km/h) |
| 75 mph (120.7 km/h) | 75.6 mph (121.67 km/h) |
| 80 mph (128.75 km/h) | 80.64 mph (129.78 km/h) |
| 85 mph (136.79 km/h) | 85.68 mph (137.9 km/h) |
| 90 mph (144.84 km/h) | 90.72 mph (146.01 km/h) |
| 95 mph (152.89 km/h) | 95.76 mph (154.12 km/h) |
| 100 mph (160.93 km/h) | 100.8 mph (162.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1601 | 1860 | 2003 | 2091 | 2187 | 2255 | 2330 | 2418 | 2541 | 2664 | 2800 | 2909 | 3106 | 3324 | 3495 | 3604 | 3665 | 3890 | 4203 | 4885 |
Better Fuel Economy Factory Ratios Increased Power
