Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/55-16 | 115/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.01 (609.9) | 22.34 (567.4) | -1.67 (-42.5) -7% |
| Width inches (mm) | 7.28 (185) | 4.53 (115) | -2.76 (-70) -37.8% |
| Circum. inches (mm) | 75.44 (1916.06) | 70.18 (1782.54) | -5.26 (-133.52) -7% |
| Sidewall Height inches (mm) | 4.01 (101.75) | 3.17 (80.5) | -0.84 (-21.25) -20.9% |
| Revolutions per mile (km) | 839.92 (521.9) | 902.84 (561) | 62.91 (39.09) 7.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.61 mph (29.94 km/h) |
| 25 mph (40.23 km/h) | 23.26 mph (37.43 km/h) |
| 30 mph (48.28 km/h) | 27.91 mph (44.92 km/h) |
| 35 mph (56.33 km/h) | 32.56 mph (52.4 km/h) |
| 40 mph (64.37 km/h) | 37.21 mph (59.89 km/h) |
| 45 mph (72.42 km/h) | 41.86 mph (67.37 km/h) |
| 50 mph (80.47 km/h) | 46.52 mph (74.86 km/h) |
| 55 mph (88.51 km/h) | 51.17 mph (82.35 km/h) |
| 60 mph (96.56 km/h) | 55.82 mph (89.83 km/h) |
| 65 mph (104.61 km/h) | 60.47 mph (97.32 km/h) |
| 70 mph (112.65 km/h) | 65.12 mph (104.8 km/h) |
| 75 mph (120.7 km/h) | 69.77 mph (112.29 km/h) |
| 80 mph (128.75 km/h) | 74.43 mph (119.78 km/h) |
| 85 mph (136.79 km/h) | 79.08 mph (127.26 km/h) |
| 90 mph (144.84 km/h) | 83.73 mph (134.75 km/h) |
| 95 mph (152.89 km/h) | 88.38 mph (142.23 km/h) |
| 100 mph (160.93 km/h) | 93.03 mph (149.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2298 | 2669 | 2874 | 3001 | 3138 | 3236 | 3344 | 3471 | 3647 | 3823 | 4018 | 4175 | 4458 | 4771 | 5016 | 5172 | 5260 | 5583 | 6032 | 7010 |
Better Fuel Economy Factory Ratios Increased Power
