Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 200/70-15 | 185/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.02 (661) | 25.2 (640) | -0.83 (-21) -3.2% |
| Width inches (mm) | 7.87 (200) | 7.28 (185) | -0.59 (-15) -7.5% |
| Circum. inches (mm) | 81.76 (2076.59) | 79.16 (2010.62) | -2.6 (-65.97) -3.2% |
| Sidewall Height inches (mm) | 5.51 (140) | 5.1 (129.5) | -0.41 (-10.5) -7.5% |
| Revolutions per mile (km) | 774.99 (481.56) | 800.42 (497.36) | 25.43 (15.8) 3.3% |
185/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.36 mph (31.16 km/h) |
| 25 mph (40.23 km/h) | 24.21 mph (38.96 km/h) |
| 30 mph (48.28 km/h) | 29.05 mph (46.75 km/h) |
| 35 mph (56.33 km/h) | 33.89 mph (54.54 km/h) |
| 40 mph (64.37 km/h) | 38.73 mph (62.33 km/h) |
| 45 mph (72.42 km/h) | 43.57 mph (70.12 km/h) |
| 50 mph (80.47 km/h) | 48.41 mph (77.91 km/h) |
| 55 mph (88.51 km/h) | 53.25 mph (85.7 km/h) |
| 60 mph (96.56 km/h) | 58.09 mph (93.49 km/h) |
| 65 mph (104.61 km/h) | 62.93 mph (101.28 km/h) |
| 70 mph (112.65 km/h) | 67.78 mph (109.08 km/h) |
| 75 mph (120.7 km/h) | 72.62 mph (116.87 km/h) |
| 80 mph (128.75 km/h) | 77.46 mph (124.66 km/h) |
| 85 mph (136.79 km/h) | 82.3 mph (132.45 km/h) |
| 90 mph (144.84 km/h) | 87.14 mph (140.24 km/h) |
| 95 mph (152.89 km/h) | 91.98 mph (148.03 km/h) |
| 100 mph (160.93 km/h) | 96.82 mph (155.82 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2037 | 2366 | 2548 | 2661 | 2782 | 2869 | 2964 | 3077 | 3233 | 3389 | 3562 | 3701 | 3952 | 4230 | 4447 | 4585 | 4663 | 4949 | 5348 | 6215 |
Better Fuel Economy Factory Ratios Increased Power
