Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/80-14 | 175/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.02 (635.6) | 26.02 (661) | 1 (25.4) 4% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 78.61 (1996.8) | 81.76 (2076.59) | 3.14 (79.8) 4% |
| Sidewall Height inches (mm) | 5.51 (140) | 5.51 (140) | 0 (0) 0% |
| Revolutions per mile (km) | 805.96 (500.8) | 774.99 (481.56) | -30.97 (-19.24) -3.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.8 mph (33.47 km/h) |
| 25 mph (40.23 km/h) | 26 mph (41.84 km/h) |
| 30 mph (48.28 km/h) | 31.2 mph (50.21 km/h) |
| 35 mph (56.33 km/h) | 36.4 mph (58.58 km/h) |
| 40 mph (64.37 km/h) | 41.6 mph (66.95 km/h) |
| 45 mph (72.42 km/h) | 46.8 mph (75.31 km/h) |
| 50 mph (80.47 km/h) | 52 mph (83.68 km/h) |
| 55 mph (88.51 km/h) | 57.2 mph (92.05 km/h) |
| 60 mph (96.56 km/h) | 62.4 mph (100.42 km/h) |
| 65 mph (104.61 km/h) | 67.6 mph (108.79 km/h) |
| 70 mph (112.65 km/h) | 72.8 mph (117.16 km/h) |
| 75 mph (120.7 km/h) | 78 mph (125.52 km/h) |
| 80 mph (128.75 km/h) | 83.2 mph (133.89 km/h) |
| 85 mph (136.79 km/h) | 88.4 mph (142.26 km/h) |
| 90 mph (144.84 km/h) | 93.6 mph (150.63 km/h) |
| 95 mph (152.89 km/h) | 98.8 mph (159 km/h) |
| 100 mph (160.93 km/h) | 104 mph (167.37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1972 | 2291 | 2467 | 2576 | 2694 | 2778 | 2870 | 2979 | 3130 | 3281 | 3449 | 3584 | 3827 | 4095 | 4305 | 4440 | 4515 | 4792 | 5178 | 6017 |
Better Fuel Economy Factory Ratios Increased Power
