Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/40-14 | 155/30-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.14 (511.6) | 17.66 (448.6) | -2.48 (-63) -12.3% |
| Width inches (mm) | 7.68 (195) | 6.1 (155) | -1.57 (-40) -20.5% |
| Circum. inches (mm) | 63.28 (1607.24) | 55.48 (1409.32) | -7.79 (-197.92) -12.3% |
| Sidewall Height inches (mm) | 3.07 (78) | 1.83 (46.5) | -1.24 (-31.5) -40.4% |
| Revolutions per mile (km) | 1001.31 (622.18) | 1141.93 (709.56) | 140.62 (87.38) 14% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.54 mph (28.22 km/h) |
| 25 mph (40.23 km/h) | 21.92 mph (35.28 km/h) |
| 30 mph (48.28 km/h) | 26.31 mph (42.34 km/h) |
| 35 mph (56.33 km/h) | 30.69 mph (49.39 km/h) |
| 40 mph (64.37 km/h) | 35.07 mph (56.45 km/h) |
| 45 mph (72.42 km/h) | 39.46 mph (63.5 km/h) |
| 50 mph (80.47 km/h) | 43.84 mph (70.56 km/h) |
| 55 mph (88.51 km/h) | 48.23 mph (77.61 km/h) |
| 60 mph (96.56 km/h) | 52.61 mph (84.67 km/h) |
| 65 mph (104.61 km/h) | 57 mph (91.73 km/h) |
| 70 mph (112.65 km/h) | 61.38 mph (98.78 km/h) |
| 75 mph (120.7 km/h) | 65.76 mph (105.84 km/h) |
| 80 mph (128.75 km/h) | 70.15 mph (112.89 km/h) |
| 85 mph (136.79 km/h) | 74.53 mph (119.95 km/h) |
| 90 mph (144.84 km/h) | 78.92 mph (127.01 km/h) |
| 95 mph (152.89 km/h) | 83.3 mph (134.06 km/h) |
| 100 mph (160.93 km/h) | 87.69 mph (141.12 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
