Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/85-16 | 175/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.71 (703.9) | 26.71 (678.5) | -1 (-25.4) -3.6% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 87.06 (2211.37) | 83.92 (2131.57) | -3.14 (-79.8) -3.6% |
| Sidewall Height inches (mm) | 5.86 (148.75) | 5.86 (148.75) | 0 (0) 0% |
| Revolutions per mile (km) | 727.76 (452.21) | 755 (469.14) | 27.24 (16.93) 3.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.28 mph (31.03 km/h) |
| 25 mph (40.23 km/h) | 24.1 mph (38.78 km/h) |
| 30 mph (48.28 km/h) | 28.92 mph (46.54 km/h) |
| 35 mph (56.33 km/h) | 33.74 mph (54.29 km/h) |
| 40 mph (64.37 km/h) | 38.56 mph (62.05 km/h) |
| 45 mph (72.42 km/h) | 43.38 mph (69.81 km/h) |
| 50 mph (80.47 km/h) | 48.2 mph (77.56 km/h) |
| 55 mph (88.51 km/h) | 53.02 mph (85.32 km/h) |
| 60 mph (96.56 km/h) | 57.83 mph (93.08 km/h) |
| 65 mph (104.61 km/h) | 62.65 mph (100.83 km/h) |
| 70 mph (112.65 km/h) | 67.47 mph (108.59 km/h) |
| 75 mph (120.7 km/h) | 72.29 mph (116.35 km/h) |
| 80 mph (128.75 km/h) | 77.11 mph (124.1 km/h) |
| 85 mph (136.79 km/h) | 81.93 mph (131.86 km/h) |
| 90 mph (144.84 km/h) | 86.75 mph (139.61 km/h) |
| 95 mph (152.89 km/h) | 91.57 mph (147.37 km/h) |
| 100 mph (160.93 km/h) | 96.39 mph (155.13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1921 | 2232 | 2404 | 2510 | 2624 | 2706 | 2796 | 2902 | 3050 | 3197 | 3360 | 3491 | 3728 | 3990 | 4194 | 4325 | 4399 | 4668 | 5045 | 5862 |
Better Fuel Economy Factory Ratios Increased Power
