Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/85-16 | 230/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.71 (703.9) | 26.96 (684.8) | -0.75 (-19.1) -2.7% |
| Width inches (mm) | 6.89 (175) | 9.06 (230) | 2.17 (55) 31.4% |
| Circum. inches (mm) | 87.06 (2211.37) | 84.7 (2151.36) | -2.36 (-60) -2.7% |
| Sidewall Height inches (mm) | 5.86 (148.75) | 4.98 (126.5) | -0.88 (-22.25) -15% |
| Revolutions per mile (km) | 727.76 (452.21) | 748.06 (464.82) | 20.3 (12.61) 2.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.46 mph (31.31 km/h) |
| 25 mph (40.23 km/h) | 24.32 mph (39.14 km/h) |
| 30 mph (48.28 km/h) | 29.19 mph (46.97 km/h) |
| 35 mph (56.33 km/h) | 34.05 mph (54.8 km/h) |
| 40 mph (64.37 km/h) | 38.91 mph (62.63 km/h) |
| 45 mph (72.42 km/h) | 43.78 mph (70.46 km/h) |
| 50 mph (80.47 km/h) | 48.64 mph (78.28 km/h) |
| 55 mph (88.51 km/h) | 53.51 mph (86.11 km/h) |
| 60 mph (96.56 km/h) | 58.37 mph (93.94 km/h) |
| 65 mph (104.61 km/h) | 63.24 mph (101.77 km/h) |
| 70 mph (112.65 km/h) | 68.1 mph (109.6 km/h) |
| 75 mph (120.7 km/h) | 72.96 mph (117.43 km/h) |
| 80 mph (128.75 km/h) | 77.83 mph (125.25 km/h) |
| 85 mph (136.79 km/h) | 82.69 mph (133.08 km/h) |
| 90 mph (144.84 km/h) | 87.56 mph (140.91 km/h) |
| 95 mph (152.89 km/h) | 92.42 mph (148.74 km/h) |
| 100 mph (160.93 km/h) | 97.29 mph (156.57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1904 | 2211 | 2382 | 2487 | 2600 | 2681 | 2770 | 2876 | 3022 | 3167 | 3329 | 3459 | 3694 | 3953 | 4156 | 4285 | 4358 | 4626 | 4998 | 5808 |
Better Fuel Economy Factory Ratios Increased Power
