Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-16 | 235/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.93 (683.9) | 28.88 (733.5) | 1.95 (49.6) 7.3% |
| Width inches (mm) | 7.28 (185) | 9.25 (235) | 1.97 (50) 27% |
| Circum. inches (mm) | 84.59 (2148.54) | 90.72 (2304.36) | 6.13 (155.82) 7.3% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 6.94 (176.25) | 1.48 (37.5) 27% |
| Revolutions per mile (km) | 749.04 (465.43) | 698.39 (433.96) | -50.65 (-31.47) -6.8% |
235/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.45 mph (34.52 km/h) |
| 25 mph (40.23 km/h) | 26.81 mph (43.15 km/h) |
| 30 mph (48.28 km/h) | 32.18 mph (51.78 km/h) |
| 35 mph (56.33 km/h) | 37.54 mph (60.41 km/h) |
| 40 mph (64.37 km/h) | 42.9 mph (69.04 km/h) |
| 45 mph (72.42 km/h) | 48.26 mph (77.67 km/h) |
| 50 mph (80.47 km/h) | 53.63 mph (86.3 km/h) |
| 55 mph (88.51 km/h) | 58.99 mph (94.93 km/h) |
| 60 mph (96.56 km/h) | 64.35 mph (103.56 km/h) |
| 65 mph (104.61 km/h) | 69.71 mph (112.19 km/h) |
| 70 mph (112.65 km/h) | 75.08 mph (120.82 km/h) |
| 75 mph (120.7 km/h) | 80.44 mph (129.45 km/h) |
| 80 mph (128.75 km/h) | 85.8 mph (138.09 km/h) |
| 85 mph (136.79 km/h) | 91.16 mph (146.72 km/h) |
| 90 mph (144.84 km/h) | 96.53 mph (155.35 km/h) |
| 95 mph (152.89 km/h) | 101.89 mph (163.98 km/h) |
| 100 mph (160.93 km/h) | 107.25 mph (172.61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1777 | 2065 | 2223 | 2322 | 2428 | 2503 | 2586 | 2685 | 2821 | 2957 | 3108 | 3229 | 3449 | 3691 | 3880 | 4001 | 4069 | 4318 | 4666 | 5423 |
Better Fuel Economy Factory Ratios Increased Power
