Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/40-14 | 175/30-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.14 (511.6) | 18.13 (460.6) | -2.01 (-51) -10% |
| Width inches (mm) | 7.68 (195) | 6.89 (175) | -0.79 (-20) -10.3% |
| Circum. inches (mm) | 63.28 (1607.24) | 56.97 (1447.02) | -6.31 (-160.22) -10% |
| Sidewall Height inches (mm) | 3.07 (78) | 2.07 (52.5) | -1 (-25.5) -32.7% |
| Revolutions per mile (km) | 1001.31 (622.18) | 1112.18 (691.08) | 110.87 (68.89) 11.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.01 mph (28.98 km/h) |
| 25 mph (40.23 km/h) | 22.51 mph (36.22 km/h) |
| 30 mph (48.28 km/h) | 27.01 mph (43.47 km/h) |
| 35 mph (56.33 km/h) | 31.51 mph (50.71 km/h) |
| 40 mph (64.37 km/h) | 36.01 mph (57.96 km/h) |
| 45 mph (72.42 km/h) | 40.51 mph (65.2 km/h) |
| 50 mph (80.47 km/h) | 45.02 mph (72.45 km/h) |
| 55 mph (88.51 km/h) | 49.52 mph (79.69 km/h) |
| 60 mph (96.56 km/h) | 54.02 mph (86.93 km/h) |
| 65 mph (104.61 km/h) | 58.52 mph (94.18 km/h) |
| 70 mph (112.65 km/h) | 63.02 mph (101.42 km/h) |
| 75 mph (120.7 km/h) | 67.52 mph (108.67 km/h) |
| 80 mph (128.75 km/h) | 72.03 mph (115.91 km/h) |
| 85 mph (136.79 km/h) | 76.53 mph (123.16 km/h) |
| 90 mph (144.84 km/h) | 81.03 mph (130.4 km/h) |
| 95 mph (152.89 km/h) | 85.53 mph (137.65 km/h) |
| 100 mph (160.93 km/h) | 90.03 mph (144.89 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
