Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 205/78-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 27.59 (700.8) | 1.94 (49.2) 7.6% |
| Width inches (mm) | 6.5 (165) | 8.07 (205) | 1.57 (40) 24.2% |
| Circum. inches (mm) | 80.59 (2047.06) | 86.68 (2201.63) | 6.09 (154.57) 7.6% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 6.3 (159.9) | 0.97 (24.6) 18.2% |
| Revolutions per mile (km) | 786.17 (488.5) | 730.98 (454.21) | -55.19 (-34.3) -7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.51 mph (34.62 km/h) |
| 25 mph (40.23 km/h) | 26.89 mph (43.27 km/h) |
| 30 mph (48.28 km/h) | 32.27 mph (51.93 km/h) |
| 35 mph (56.33 km/h) | 37.64 mph (60.58 km/h) |
| 40 mph (64.37 km/h) | 43.02 mph (69.23 km/h) |
| 45 mph (72.42 km/h) | 48.4 mph (77.89 km/h) |
| 50 mph (80.47 km/h) | 53.78 mph (86.54 km/h) |
| 55 mph (88.51 km/h) | 59.15 mph (95.2 km/h) |
| 60 mph (96.56 km/h) | 64.53 mph (103.85 km/h) |
| 65 mph (104.61 km/h) | 69.91 mph (112.51 km/h) |
| 70 mph (112.65 km/h) | 75.29 mph (121.16 km/h) |
| 75 mph (120.7 km/h) | 80.66 mph (129.81 km/h) |
| 80 mph (128.75 km/h) | 86.04 mph (138.47 km/h) |
| 85 mph (136.79 km/h) | 91.42 mph (147.12 km/h) |
| 90 mph (144.84 km/h) | 96.8 mph (155.78 km/h) |
| 95 mph (152.89 km/h) | 102.17 mph (164.43 km/h) |
| 100 mph (160.93 km/h) | 107.55 mph (173.09 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1860 | 2161 | 2327 | 2430 | 2541 | 2620 | 2707 | 2810 | 2953 | 3095 | 3253 | 3380 | 3610 | 3863 | 4061 | 4187 | 4259 | 4520 | 4884 | 5676 |
Better Fuel Economy Factory Ratios Increased Power
