Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/80-14 | 175/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.02 (635.6) | 23.96 (608.5) | -1.07 (-27.1) -4.3% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 78.61 (1996.8) | 75.26 (1911.66) | -3.35 (-85.14) -4.3% |
| Sidewall Height inches (mm) | 5.51 (140) | 4.48 (113.75) | -1.03 (-26.25) -18.8% |
| Revolutions per mile (km) | 805.96 (500.8) | 841.86 (523.1) | 35.89 (22.3) 4.5% |
175/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.15 mph (30.81 km/h) |
| 25 mph (40.23 km/h) | 23.93 mph (38.52 km/h) |
| 30 mph (48.28 km/h) | 28.72 mph (46.22 km/h) |
| 35 mph (56.33 km/h) | 33.51 mph (53.93 km/h) |
| 40 mph (64.37 km/h) | 38.29 mph (61.63 km/h) |
| 45 mph (72.42 km/h) | 43.08 mph (69.33 km/h) |
| 50 mph (80.47 km/h) | 47.87 mph (77.04 km/h) |
| 55 mph (88.51 km/h) | 52.65 mph (84.74 km/h) |
| 60 mph (96.56 km/h) | 57.44 mph (92.44 km/h) |
| 65 mph (104.61 km/h) | 62.23 mph (100.15 km/h) |
| 70 mph (112.65 km/h) | 67.02 mph (107.85 km/h) |
| 75 mph (120.7 km/h) | 71.8 mph (115.55 km/h) |
| 80 mph (128.75 km/h) | 76.59 mph (123.26 km/h) |
| 85 mph (136.79 km/h) | 81.38 mph (130.96 km/h) |
| 90 mph (144.84 km/h) | 86.16 mph (138.67 km/h) |
| 95 mph (152.89 km/h) | 90.95 mph (146.37 km/h) |
| 100 mph (160.93 km/h) | 95.74 mph (154.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2142 | 2489 | 2680 | 2799 | 2926 | 3018 | 3118 | 3236 | 3400 | 3565 | 3747 | 3893 | 4157 | 4449 | 4677 | 4823 | 4905 | 5205 | 5625 | 6536 |
Better Fuel Economy Factory Ratios Increased Power
