Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/40-14 | 185/45-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.14 (511.6) | 22.56 (572.9) | 2.41 (61.3) 12% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 63.28 (1607.24) | 70.86 (1799.82) | 7.58 (192.58) 12% |
| Sidewall Height inches (mm) | 3.07 (78) | 3.28 (83.25) | 0.21 (5.25) 6.7% |
| Revolutions per mile (km) | 1001.31 (622.18) | 894.17 (555.61) | -107.14 (-66.57) -10.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.4 mph (36.04 km/h) |
| 25 mph (40.23 km/h) | 28 mph (45.05 km/h) |
| 30 mph (48.28 km/h) | 33.59 mph (54.07 km/h) |
| 35 mph (56.33 km/h) | 39.19 mph (63.08 km/h) |
| 40 mph (64.37 km/h) | 44.79 mph (72.09 km/h) |
| 45 mph (72.42 km/h) | 50.39 mph (81.1 km/h) |
| 50 mph (80.47 km/h) | 55.99 mph (90.11 km/h) |
| 55 mph (88.51 km/h) | 61.59 mph (99.12 km/h) |
| 60 mph (96.56 km/h) | 67.19 mph (108.13 km/h) |
| 65 mph (104.61 km/h) | 72.79 mph (117.14 km/h) |
| 70 mph (112.65 km/h) | 78.39 mph (126.15 km/h) |
| 75 mph (120.7 km/h) | 83.99 mph (135.16 km/h) |
| 80 mph (128.75 km/h) | 89.59 mph (144.17 km/h) |
| 85 mph (136.79 km/h) | 95.18 mph (153.19 km/h) |
| 90 mph (144.84 km/h) | 100.78 mph (162.2 km/h) |
| 95 mph (152.89 km/h) | 106.38 mph (171.21 km/h) |
| 100 mph (160.93 km/h) | 111.98 mph (180.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2275 | 2643 | 2847 | 2973 | 3108 | 3205 | 3312 | 3437 | 3612 | 3786 | 3980 | 4135 | 4415 | 4725 | 4967 | 5122 | 5209 | 5529 | 5974 | 6943 |
Better Fuel Economy Factory Ratios Increased Power
