Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-14 | 205/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.65 (600.6) | 23.46 (595.8) | -0.19 (-4.8) -0.8% |
| Width inches (mm) | 6.89 (175) | 8.07 (205) | 1.18 (30) 17.1% |
| Circum. inches (mm) | 74.29 (1886.84) | 73.69 (1871.76) | -0.59 (-15.08) -0.8% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 3.23 (82) | -1.59 (-40.5) -33.1% |
| Revolutions per mile (km) | 852.93 (529.99) | 859.8 (534.26) | 6.87 (4.27) 0.8% |
205/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.84 mph (31.93 km/h) |
| 25 mph (40.23 km/h) | 24.8 mph (39.91 km/h) |
| 30 mph (48.28 km/h) | 29.76 mph (47.89 km/h) |
| 35 mph (56.33 km/h) | 34.72 mph (55.88 km/h) |
| 40 mph (64.37 km/h) | 39.68 mph (63.86 km/h) |
| 45 mph (72.42 km/h) | 44.64 mph (71.84 km/h) |
| 50 mph (80.47 km/h) | 49.6 mph (79.82 km/h) |
| 55 mph (88.51 km/h) | 54.56 mph (87.81 km/h) |
| 60 mph (96.56 km/h) | 59.52 mph (95.79 km/h) |
| 65 mph (104.61 km/h) | 64.48 mph (103.77 km/h) |
| 70 mph (112.65 km/h) | 69.44 mph (111.75 km/h) |
| 75 mph (120.7 km/h) | 74.4 mph (119.74 km/h) |
| 80 mph (128.75 km/h) | 79.36 mph (127.72 km/h) |
| 85 mph (136.79 km/h) | 84.32 mph (135.7 km/h) |
| 90 mph (144.84 km/h) | 89.28 mph (143.68 km/h) |
| 95 mph (152.89 km/h) | 94.24 mph (151.67 km/h) |
| 100 mph (160.93 km/h) | 99.2 mph (159.65 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2188 | 2542 | 2737 | 2858 | 2989 | 3082 | 3184 | 3305 | 3473 | 3641 | 3827 | 3976 | 4246 | 4544 | 4776 | 4925 | 5009 | 5316 | 5745 | 6676 |
Better Fuel Economy Factory Ratios Increased Power
