Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 190/60-15 | 190/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.98 (609) | 26.97 (685) | 2.99 (76) 12.5% |
| Width inches (mm) | 7.48 (190) | 7.48 (190) | 0 (0) 0% |
| Circum. inches (mm) | 75.32 (1913.23) | 84.72 (2151.99) | 9.4 (238.76) 12.5% |
| Sidewall Height inches (mm) | 4.49 (114) | 5.98 (152) | 1.5 (38) 33.3% |
| Revolutions per mile (km) | 841.17 (522.68) | 747.84 (464.69) | -93.33 (-57.99) -11.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.5 mph (36.2 km/h) |
| 25 mph (40.23 km/h) | 28.12 mph (45.25 km/h) |
| 30 mph (48.28 km/h) | 33.74 mph (54.31 km/h) |
| 35 mph (56.33 km/h) | 39.37 mph (63.36 km/h) |
| 40 mph (64.37 km/h) | 44.99 mph (72.41 km/h) |
| 45 mph (72.42 km/h) | 50.62 mph (81.46 km/h) |
| 50 mph (80.47 km/h) | 56.24 mph (90.51 km/h) |
| 55 mph (88.51 km/h) | 61.86 mph (99.56 km/h) |
| 60 mph (96.56 km/h) | 67.49 mph (108.61 km/h) |
| 65 mph (104.61 km/h) | 73.11 mph (117.66 km/h) |
| 70 mph (112.65 km/h) | 78.74 mph (126.71 km/h) |
| 75 mph (120.7 km/h) | 84.36 mph (135.76 km/h) |
| 80 mph (128.75 km/h) | 89.98 mph (144.81 km/h) |
| 85 mph (136.79 km/h) | 95.61 mph (153.87 km/h) |
| 90 mph (144.84 km/h) | 101.23 mph (162.92 km/h) |
| 95 mph (152.89 km/h) | 106.86 mph (171.97 km/h) |
| 100 mph (160.93 km/h) | 112.48 mph (181.02 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1903 | 2211 | 2381 | 2486 | 2600 | 2681 | 2770 | 2875 | 3021 | 3166 | 3328 | 3458 | 3693 | 3952 | 4154 | 4284 | 4357 | 4624 | 4997 | 5807 |
Better Fuel Economy Factory Ratios Increased Power
