Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-16 | 185/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.93 (683.9) | 27.38 (695.5) | 0.46 (11.6) 1.7% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 84.59 (2148.54) | 86.02 (2184.98) | 1.43 (36.44) 1.7% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 6.19 (157.25) | 0.73 (18.5) 13.3% |
| Revolutions per mile (km) | 749.04 (465.43) | 736.55 (457.67) | -12.49 (-7.76) -1.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.34 mph (32.73 km/h) |
| 25 mph (40.23 km/h) | 25.42 mph (40.92 km/h) |
| 30 mph (48.28 km/h) | 30.51 mph (49.1 km/h) |
| 35 mph (56.33 km/h) | 35.59 mph (57.28 km/h) |
| 40 mph (64.37 km/h) | 40.68 mph (65.47 km/h) |
| 45 mph (72.42 km/h) | 45.76 mph (73.65 km/h) |
| 50 mph (80.47 km/h) | 50.85 mph (81.83 km/h) |
| 55 mph (88.51 km/h) | 55.93 mph (90.02 km/h) |
| 60 mph (96.56 km/h) | 61.02 mph (98.2 km/h) |
| 65 mph (104.61 km/h) | 66.1 mph (106.38 km/h) |
| 70 mph (112.65 km/h) | 71.19 mph (114.57 km/h) |
| 75 mph (120.7 km/h) | 76.27 mph (122.75 km/h) |
| 80 mph (128.75 km/h) | 81.36 mph (130.93 km/h) |
| 85 mph (136.79 km/h) | 86.44 mph (139.11 km/h) |
| 90 mph (144.84 km/h) | 91.53 mph (147.3 km/h) |
| 95 mph (152.89 km/h) | 96.61 mph (155.48 km/h) |
| 100 mph (160.93 km/h) | 101.7 mph (163.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1874 | 2177 | 2345 | 2449 | 2560 | 2640 | 2728 | 2832 | 2975 | 3119 | 3278 | 3406 | 3637 | 3892 | 4092 | 4219 | 4291 | 4554 | 4921 | 5719 |
Better Fuel Economy Factory Ratios Increased Power
