Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/55-17 | 140/60-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.36 (618.8) | 23.61 (599.8) | -0.75 (-19) -3.1% |
| Width inches (mm) | 6.69 (170) | 5.51 (140) | -1.18 (-30) -17.6% |
| Circum. inches (mm) | 76.54 (1944.02) | 74.19 (1884.33) | -2.35 (-59.69) -3.1% |
| Sidewall Height inches (mm) | 3.68 (93.5) | 3.31 (84) | -0.37 (-9.5) -10.2% |
| Revolutions per mile (km) | 827.84 (514.4) | 854.07 (530.69) | 26.22 (16.29) 3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.39 mph (31.2 km/h) |
| 25 mph (40.23 km/h) | 24.23 mph (39 km/h) |
| 30 mph (48.28 km/h) | 29.08 mph (46.8 km/h) |
| 35 mph (56.33 km/h) | 33.93 mph (54.6 km/h) |
| 40 mph (64.37 km/h) | 38.77 mph (62.4 km/h) |
| 45 mph (72.42 km/h) | 43.62 mph (70.2 km/h) |
| 50 mph (80.47 km/h) | 48.46 mph (78 km/h) |
| 55 mph (88.51 km/h) | 53.31 mph (85.8 km/h) |
| 60 mph (96.56 km/h) | 58.16 mph (93.6 km/h) |
| 65 mph (104.61 km/h) | 63 mph (101.4 km/h) |
| 70 mph (112.65 km/h) | 67.85 mph (109.2 km/h) |
| 75 mph (120.7 km/h) | 72.7 mph (116.99 km/h) |
| 80 mph (128.75 km/h) | 77.54 mph (124.79 km/h) |
| 85 mph (136.79 km/h) | 82.39 mph (132.59 km/h) |
| 90 mph (144.84 km/h) | 87.24 mph (140.39 km/h) |
| 95 mph (152.89 km/h) | 92.08 mph (148.19 km/h) |
| 100 mph (160.93 km/h) | 96.93 mph (155.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2173 | 2525 | 2719 | 2839 | 2969 | 3061 | 3163 | 3283 | 3450 | 3616 | 3801 | 3949 | 4217 | 4513 | 4745 | 4893 | 4976 | 5281 | 5706 | 6631 |
Better Fuel Economy Factory Ratios Increased Power
