Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 190/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 24.48 (621.8) | -0.86 (-21.8) -3.4% |
| Width inches (mm) | 7.09 (180) | 7.48 (190) | 0.39 (10) 5.6% |
| Circum. inches (mm) | 79.6 (2021.93) | 76.91 (1953.44) | -2.7 (-68.49) -3.4% |
| Sidewall Height inches (mm) | 5.67 (144) | 3.74 (95) | -1.93 (-49) -34% |
| Revolutions per mile (km) | 795.94 (494.58) | 823.85 (511.92) | 27.91 (17.34) 3.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.32 mph (31.1 km/h) |
| 25 mph (40.23 km/h) | 24.15 mph (38.87 km/h) |
| 30 mph (48.28 km/h) | 28.98 mph (46.65 km/h) |
| 35 mph (56.33 km/h) | 33.81 mph (54.42 km/h) |
| 40 mph (64.37 km/h) | 38.65 mph (62.19 km/h) |
| 45 mph (72.42 km/h) | 43.48 mph (69.97 km/h) |
| 50 mph (80.47 km/h) | 48.31 mph (77.74 km/h) |
| 55 mph (88.51 km/h) | 53.14 mph (85.52 km/h) |
| 60 mph (96.56 km/h) | 57.97 mph (93.29 km/h) |
| 65 mph (104.61 km/h) | 62.8 mph (101.06 km/h) |
| 70 mph (112.65 km/h) | 67.63 mph (108.84 km/h) |
| 75 mph (120.7 km/h) | 72.46 mph (116.61 km/h) |
| 80 mph (128.75 km/h) | 77.29 mph (124.39 km/h) |
| 85 mph (136.79 km/h) | 82.12 mph (132.16 km/h) |
| 90 mph (144.84 km/h) | 86.95 mph (139.94 km/h) |
| 95 mph (152.89 km/h) | 91.78 mph (147.71 km/h) |
| 100 mph (160.93 km/h) | 96.61 mph (155.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2097 | 2436 | 2623 | 2739 | 2864 | 2953 | 3051 | 3167 | 3328 | 3488 | 3667 | 3809 | 4068 | 4354 | 4577 | 4719 | 4800 | 5094 | 5505 | 6397 |
Better Fuel Economy Factory Ratios Increased Power
