Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/80-15 | 185/82-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.65 (677) | 26.94 (684.4) | 0.29 (7.4) 1.1% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 83.73 (2126.86) | 84.65 (2150.11) | 0.92 (23.25) 1.1% |
| Sidewall Height inches (mm) | 5.83 (148) | 5.97 (151.7) | 0.15 (3.7) 2.5% |
| Revolutions per mile (km) | 756.68 (470.18) | 748.5 (465.09) | -8.18 (-5.08) -1.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.22 mph (32.54 km/h) |
| 25 mph (40.23 km/h) | 25.27 mph (40.67 km/h) |
| 30 mph (48.28 km/h) | 30.33 mph (48.81 km/h) |
| 35 mph (56.33 km/h) | 35.38 mph (56.94 km/h) |
| 40 mph (64.37 km/h) | 40.44 mph (65.08 km/h) |
| 45 mph (72.42 km/h) | 45.49 mph (73.21 km/h) |
| 50 mph (80.47 km/h) | 50.55 mph (81.35 km/h) |
| 55 mph (88.51 km/h) | 55.6 mph (89.48 km/h) |
| 60 mph (96.56 km/h) | 60.66 mph (97.62 km/h) |
| 65 mph (104.61 km/h) | 65.71 mph (105.75 km/h) |
| 70 mph (112.65 km/h) | 70.77 mph (113.89 km/h) |
| 75 mph (120.7 km/h) | 75.82 mph (122.02 km/h) |
| 80 mph (128.75 km/h) | 80.87 mph (130.16 km/h) |
| 85 mph (136.79 km/h) | 85.93 mph (138.29 km/h) |
| 90 mph (144.84 km/h) | 90.98 mph (146.42 km/h) |
| 95 mph (152.89 km/h) | 96.04 mph (154.56 km/h) |
| 100 mph (160.93 km/h) | 101.09 mph (162.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1905 | 2213 | 2383 | 2488 | 2602 | 2683 | 2772 | 2877 | 3023 | 3169 | 3331 | 3461 | 3696 | 3955 | 4158 | 4288 | 4361 | 4628 | 5001 | 5812 |
Better Fuel Economy Factory Ratios Increased Power
