Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/70-13 | 185/85-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.75 (603.2) | 25.38 (644.7) | 1.63 (41.5) 6.9% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 74.61 (1895.01) | 79.74 (2025.38) | 5.13 (130.38) 6.9% |
| Sidewall Height inches (mm) | 5.37 (136.5) | 6.19 (157.25) | 0.82 (20.75) 15.2% |
| Revolutions per mile (km) | 849.25 (527.7) | 794.59 (493.73) | -54.67 (-33.97) -6.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.38 mph (34.4 km/h) |
| 25 mph (40.23 km/h) | 26.72 mph (43 km/h) |
| 30 mph (48.28 km/h) | 32.06 mph (51.6 km/h) |
| 35 mph (56.33 km/h) | 37.41 mph (60.2 km/h) |
| 40 mph (64.37 km/h) | 42.75 mph (68.8 km/h) |
| 45 mph (72.42 km/h) | 48.1 mph (77.4 km/h) |
| 50 mph (80.47 km/h) | 53.44 mph (86 km/h) |
| 55 mph (88.51 km/h) | 58.78 mph (94.6 km/h) |
| 60 mph (96.56 km/h) | 64.13 mph (103.2 km/h) |
| 65 mph (104.61 km/h) | 69.47 mph (111.8 km/h) |
| 70 mph (112.65 km/h) | 74.82 mph (120.4 km/h) |
| 75 mph (120.7 km/h) | 80.16 mph (129.01 km/h) |
| 80 mph (128.75 km/h) | 85.5 mph (137.61 km/h) |
| 85 mph (136.79 km/h) | 90.85 mph (146.21 km/h) |
| 90 mph (144.84 km/h) | 96.19 mph (154.81 km/h) |
| 95 mph (152.89 km/h) | 101.54 mph (163.41 km/h) |
| 100 mph (160.93 km/h) | 106.88 mph (172.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 2349 | 2530 | 2642 | 2762 | 2848 | 2943 | 3055 | 3210 | 3364 | 3536 | 3674 | 3924 | 4199 | 4414 | 4552 | 4629 | 4913 | 5309 | 6169 |
Better Fuel Economy Factory Ratios Increased Power
