Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 150/80-17 | 180/70-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.45 (671.8) | 25.92 (658.4) | -0.53 (-13.4) -2% |
| Width inches (mm) | 5.91 (150) | 7.09 (180) | 1.18 (30) 20% |
| Circum. inches (mm) | 83.09 (2110.52) | 81.43 (2068.42) | -1.66 (-42.1) -2% |
| Sidewall Height inches (mm) | 4.72 (120) | 4.96 (126) | 0.24 (6) 5% |
| Revolutions per mile (km) | 762.53 (473.82) | 778.05 (483.46) | 15.52 (9.64) 2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.6 mph (31.54 km/h) |
| 25 mph (40.23 km/h) | 24.5 mph (39.43 km/h) |
| 30 mph (48.28 km/h) | 29.4 mph (47.32 km/h) |
| 35 mph (56.33 km/h) | 34.3 mph (55.2 km/h) |
| 40 mph (64.37 km/h) | 39.2 mph (63.09 km/h) |
| 45 mph (72.42 km/h) | 44.1 mph (70.98 km/h) |
| 50 mph (80.47 km/h) | 49 mph (78.86 km/h) |
| 55 mph (88.51 km/h) | 53.9 mph (86.75 km/h) |
| 60 mph (96.56 km/h) | 58.8 mph (94.63 km/h) |
| 65 mph (104.61 km/h) | 63.7 mph (102.52 km/h) |
| 70 mph (112.65 km/h) | 68.6 mph (110.41 km/h) |
| 75 mph (120.7 km/h) | 73.5 mph (118.29 km/h) |
| 80 mph (128.75 km/h) | 78.4 mph (126.18 km/h) |
| 85 mph (136.79 km/h) | 83.3 mph (134.07 km/h) |
| 90 mph (144.84 km/h) | 88.2 mph (141.95 km/h) |
| 95 mph (152.89 km/h) | 93.11 mph (149.84 km/h) |
| 100 mph (160.93 km/h) | 98.01 mph (157.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980 | 2300 | 2477 | 2587 | 2705 | 2789 | 2882 | 2991 | 3143 | 3294 | 3463 | 3598 | 3842 | 4112 | 4322 | 4457 | 4533 | 4811 | 5199 | 6041 |
Better Fuel Economy Factory Ratios Increased Power
