Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/75-17 | 185/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.74 (679.3) | 28.65 (727.8) | 1.91 (48.5) 7.1% |
| Width inches (mm) | 6.5 (165) | 7.28 (185) | 0.79 (20) 12.1% |
| Circum. inches (mm) | 84.02 (2134.08) | 90.02 (2286.45) | 6 (152.37) 7.1% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 5.83 (148) | 0.95 (24.25) 19.6% |
| Revolutions per mile (km) | 754.11 (468.58) | 703.86 (437.36) | -50.25 (-31.23) -6.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.43 mph (34.48 km/h) |
| 25 mph (40.23 km/h) | 26.78 mph (43.11 km/h) |
| 30 mph (48.28 km/h) | 32.14 mph (51.73 km/h) |
| 35 mph (56.33 km/h) | 37.5 mph (60.35 km/h) |
| 40 mph (64.37 km/h) | 42.86 mph (68.97 km/h) |
| 45 mph (72.42 km/h) | 48.21 mph (77.59 km/h) |
| 50 mph (80.47 km/h) | 53.57 mph (86.21 km/h) |
| 55 mph (88.51 km/h) | 58.93 mph (94.83 km/h) |
| 60 mph (96.56 km/h) | 64.28 mph (103.45 km/h) |
| 65 mph (104.61 km/h) | 69.64 mph (112.08 km/h) |
| 70 mph (112.65 km/h) | 75 mph (120.7 km/h) |
| 75 mph (120.7 km/h) | 80.35 mph (129.32 km/h) |
| 80 mph (128.75 km/h) | 85.71 mph (137.94 km/h) |
| 85 mph (136.79 km/h) | 91.07 mph (146.56 km/h) |
| 90 mph (144.84 km/h) | 96.43 mph (155.18 km/h) |
| 95 mph (152.89 km/h) | 101.78 mph (163.8 km/h) |
| 100 mph (160.93 km/h) | 107.14 mph (172.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1791 | 2081 | 2241 | 2340 | 2447 | 2523 | 2607 | 2706 | 2843 | 2980 | 3133 | 3255 | 3476 | 3720 | 3910 | 4032 | 4101 | 4352 | 4703 | 5465 |
Better Fuel Economy Factory Ratios Increased Power
