Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-15 | 195/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.93 (658.5) | 28.05 (712.5) | 2.13 (54) 8.2% |
| Width inches (mm) | 7.28 (185) | 7.68 (195) | 0.39 (10) 5.4% |
| Circum. inches (mm) | 81.45 (2068.74) | 88.13 (2238.38) | 6.68 (169.65) 8.2% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 6.53 (165.75) | 1.06 (27) 19.5% |
| Revolutions per mile (km) | 777.93 (483.39) | 718.98 (446.75) | -58.96 (-36.64) -7.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.64 mph (34.83 km/h) |
| 25 mph (40.23 km/h) | 27.05 mph (43.53 km/h) |
| 30 mph (48.28 km/h) | 32.46 mph (52.24 km/h) |
| 35 mph (56.33 km/h) | 37.87 mph (60.95 km/h) |
| 40 mph (64.37 km/h) | 43.28 mph (69.65 km/h) |
| 45 mph (72.42 km/h) | 48.69 mph (78.36 km/h) |
| 50 mph (80.47 km/h) | 54.1 mph (87.07 km/h) |
| 55 mph (88.51 km/h) | 59.51 mph (95.77 km/h) |
| 60 mph (96.56 km/h) | 64.92 mph (104.48 km/h) |
| 65 mph (104.61 km/h) | 70.33 mph (113.19 km/h) |
| 70 mph (112.65 km/h) | 75.74 mph (121.89 km/h) |
| 75 mph (120.7 km/h) | 81.15 mph (130.6 km/h) |
| 80 mph (128.75 km/h) | 86.56 mph (139.31 km/h) |
| 85 mph (136.79 km/h) | 91.97 mph (148.01 km/h) |
| 90 mph (144.84 km/h) | 97.38 mph (156.72 km/h) |
| 95 mph (152.89 km/h) | 102.79 mph (165.43 km/h) |
| 100 mph (160.93 km/h) | 108.2 mph (174.13 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1830 | 2126 | 2289 | 2390 | 2499 | 2577 | 2663 | 2764 | 2904 | 3044 | 3200 | 3325 | 3550 | 3799 | 3994 | 4119 | 4189 | 4446 | 4804 | 5582 |
Better Fuel Economy Factory Ratios Increased Power
