Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/40-14 | 195/30-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.14 (511.6) | 21.61 (548.8) | 1.46 (37.2) 7.3% |
| Width inches (mm) | 7.68 (195) | 7.68 (195) | 0 (0) 0% |
| Circum. inches (mm) | 63.28 (1607.24) | 67.88 (1724.11) | 4.6 (116.87) 7.3% |
| Sidewall Height inches (mm) | 3.07 (78) | 2.3 (58.5) | -0.77 (-19.5) -25% |
| Revolutions per mile (km) | 1001.31 (622.18) | 933.44 (580.01) | -67.87 (-42.17) -6.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.45 mph (34.53 km/h) |
| 25 mph (40.23 km/h) | 26.82 mph (43.16 km/h) |
| 30 mph (48.28 km/h) | 32.18 mph (51.79 km/h) |
| 35 mph (56.33 km/h) | 37.54 mph (60.42 km/h) |
| 40 mph (64.37 km/h) | 42.91 mph (69.05 km/h) |
| 45 mph (72.42 km/h) | 48.27 mph (77.69 km/h) |
| 50 mph (80.47 km/h) | 53.64 mph (86.32 km/h) |
| 55 mph (88.51 km/h) | 59 mph (94.95 km/h) |
| 60 mph (96.56 km/h) | 64.36 mph (103.58 km/h) |
| 65 mph (104.61 km/h) | 69.73 mph (112.21 km/h) |
| 70 mph (112.65 km/h) | 75.09 mph (120.85 km/h) |
| 75 mph (120.7 km/h) | 80.45 mph (129.48 km/h) |
| 80 mph (128.75 km/h) | 85.82 mph (138.11 km/h) |
| 85 mph (136.79 km/h) | 91.18 mph (146.74 km/h) |
| 90 mph (144.84 km/h) | 96.54 mph (155.37 km/h) |
| 95 mph (152.89 km/h) | 101.91 mph (164 km/h) |
| 100 mph (160.93 km/h) | 107.27 mph (172.64 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
