Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/75-17 | 85/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.33 (694.3) | 22.02 (559.3) | -5.31 (-135) -19.4% |
| Width inches (mm) | 6.89 (175) | 3.35 (85) | -3.54 (-90) -51.4% |
| Circum. inches (mm) | 85.87 (2181.21) | 69.18 (1757.09) | -16.7 (-424.12) -19.4% |
| Sidewall Height inches (mm) | 5.17 (131.25) | 2.51 (63.75) | -2.66 (-67.5) -51.4% |
| Revolutions per mile (km) | 737.82 (458.46) | 915.91 (569.12) | 178.09 (110.66) 24.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.11 mph (25.93 km/h) |
| 25 mph (40.23 km/h) | 20.14 mph (32.41 km/h) |
| 30 mph (48.28 km/h) | 24.17 mph (38.89 km/h) |
| 35 mph (56.33 km/h) | 28.19 mph (45.37 km/h) |
| 40 mph (64.37 km/h) | 32.22 mph (51.86 km/h) |
| 45 mph (72.42 km/h) | 36.25 mph (58.34 km/h) |
| 50 mph (80.47 km/h) | 40.28 mph (64.82 km/h) |
| 55 mph (88.51 km/h) | 44.31 mph (71.3 km/h) |
| 60 mph (96.56 km/h) | 48.33 mph (77.79 km/h) |
| 65 mph (104.61 km/h) | 52.36 mph (84.27 km/h) |
| 70 mph (112.65 km/h) | 56.39 mph (90.75 km/h) |
| 75 mph (120.7 km/h) | 60.42 mph (97.23 km/h) |
| 80 mph (128.75 km/h) | 64.44 mph (103.71 km/h) |
| 85 mph (136.79 km/h) | 68.47 mph (110.2 km/h) |
| 90 mph (144.84 km/h) | 72.5 mph (116.68 km/h) |
| 95 mph (152.89 km/h) | 76.53 mph (123.16 km/h) |
| 100 mph (160.93 km/h) | 80.56 mph (129.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2331 | 2708 | 2916 | 3045 | 3184 | 3283 | 3392 | 3521 | 3700 | 3878 | 4076 | 4235 | 4523 | 4840 | 5088 | 5247 | 5336 | 5663 | 6120 | 7111 |
Better Fuel Economy Factory Ratios Increased Power
