Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/45-15 | 185/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.91 (556.5) | 22.28 (566) | 0.37 (9.5) 1.7% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 68.83 (1748.3) | 70.01 (1778.14) | 1.18 (29.85) 1.7% |
| Sidewall Height inches (mm) | 3.45 (87.75) | 3.64 (92.5) | 0.19 (4.75) 5.4% |
| Revolutions per mile (km) | 920.52 (571.98) | 905.07 (562.38) | -15.45 (-9.6) -1.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.34 mph (32.74 km/h) |
| 25 mph (40.23 km/h) | 25.43 mph (40.92 km/h) |
| 30 mph (48.28 km/h) | 30.51 mph (49.1 km/h) |
| 35 mph (56.33 km/h) | 35.6 mph (57.29 km/h) |
| 40 mph (64.37 km/h) | 40.68 mph (65.47 km/h) |
| 45 mph (72.42 km/h) | 45.77 mph (73.66 km/h) |
| 50 mph (80.47 km/h) | 50.85 mph (81.84 km/h) |
| 55 mph (88.51 km/h) | 55.94 mph (90.03 km/h) |
| 60 mph (96.56 km/h) | 61.02 mph (98.21 km/h) |
| 65 mph (104.61 km/h) | 66.11 mph (106.39 km/h) |
| 70 mph (112.65 km/h) | 71.19 mph (114.58 km/h) |
| 75 mph (120.7 km/h) | 76.28 mph (122.76 km/h) |
| 80 mph (128.75 km/h) | 81.37 mph (130.95 km/h) |
| 85 mph (136.79 km/h) | 86.45 mph (139.13 km/h) |
| 90 mph (144.84 km/h) | 91.54 mph (147.31 km/h) |
| 95 mph (152.89 km/h) | 96.62 mph (155.5 km/h) |
| 100 mph (160.93 km/h) | 101.71 mph (163.68 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2303 | 2676 | 2881 | 3009 | 3146 | 3244 | 3352 | 3479 | 3656 | 3832 | 4028 | 4185 | 4469 | 4783 | 5028 | 5185 | 5273 | 5596 | 6047 | 7027 |
Better Fuel Economy Factory Ratios Increased Power
