Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/75-17 | 185/65-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.33 (694.3) | 25.47 (646.9) | -1.87 (-47.4) -6.8% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 85.87 (2181.21) | 80.01 (2032.3) | -5.86 (-148.91) -6.8% |
| Sidewall Height inches (mm) | 5.17 (131.25) | 4.73 (120.25) | -0.43 (-11) -8.4% |
| Revolutions per mile (km) | 737.82 (458.46) | 791.88 (492.05) | 54.06 (33.59) 7.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.63 mph (29.99 km/h) |
| 25 mph (40.23 km/h) | 23.29 mph (37.49 km/h) |
| 30 mph (48.28 km/h) | 27.95 mph (44.98 km/h) |
| 35 mph (56.33 km/h) | 32.61 mph (52.48 km/h) |
| 40 mph (64.37 km/h) | 37.27 mph (59.98 km/h) |
| 45 mph (72.42 km/h) | 41.93 mph (67.48 km/h) |
| 50 mph (80.47 km/h) | 46.59 mph (74.97 km/h) |
| 55 mph (88.51 km/h) | 51.25 mph (82.47 km/h) |
| 60 mph (96.56 km/h) | 55.9 mph (89.97 km/h) |
| 65 mph (104.61 km/h) | 60.56 mph (97.47 km/h) |
| 70 mph (112.65 km/h) | 65.22 mph (104.96 km/h) |
| 75 mph (120.7 km/h) | 69.88 mph (112.46 km/h) |
| 80 mph (128.75 km/h) | 74.54 mph (119.96 km/h) |
| 85 mph (136.79 km/h) | 79.2 mph (127.46 km/h) |
| 90 mph (144.84 km/h) | 83.86 mph (134.95 km/h) |
| 95 mph (152.89 km/h) | 88.51 mph (142.45 km/h) |
| 100 mph (160.93 km/h) | 93.17 mph (149.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 | 2341 | 2521 | 2633 | 2753 | 2838 | 2933 | 3044 | 3199 | 3353 | 3524 | 3662 | 3910 | 4185 | 4399 | 4536 | 4614 | 4896 | 5291 | 6148 |
Better Fuel Economy Factory Ratios Increased Power
