Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/80-15 | 235/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.17 (741) | 29.8 (757) | 0.63 (16) 2.2% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 91.65 (2327.92) | 93.63 (2378.19) | 1.98 (50.27) 2.2% |
| Sidewall Height inches (mm) | 7.09 (180) | 7.4 (188) | 0.31 (8) 4.4% |
| Revolutions per mile (km) | 691.32 (429.57) | 676.71 (420.49) | -14.61 (-9.08) -2.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.43 mph (32.88 km/h) |
| 25 mph (40.23 km/h) | 25.54 mph (41.1 km/h) |
| 30 mph (48.28 km/h) | 30.65 mph (49.32 km/h) |
| 35 mph (56.33 km/h) | 35.76 mph (57.54 km/h) |
| 40 mph (64.37 km/h) | 40.86 mph (65.76 km/h) |
| 45 mph (72.42 km/h) | 45.97 mph (73.98 km/h) |
| 50 mph (80.47 km/h) | 51.08 mph (82.2 km/h) |
| 55 mph (88.51 km/h) | 56.19 mph (90.43 km/h) |
| 60 mph (96.56 km/h) | 61.3 mph (98.65 km/h) |
| 65 mph (104.61 km/h) | 66.4 mph (106.87 km/h) |
| 70 mph (112.65 km/h) | 71.51 mph (115.09 km/h) |
| 75 mph (120.7 km/h) | 76.62 mph (123.31 km/h) |
| 80 mph (128.75 km/h) | 81.73 mph (131.53 km/h) |
| 85 mph (136.79 km/h) | 86.84 mph (139.75 km/h) |
| 90 mph (144.84 km/h) | 91.94 mph (147.97 km/h) |
| 95 mph (152.89 km/h) | 97.05 mph (156.19 km/h) |
| 100 mph (160.93 km/h) | 102.16 mph (164.41 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1722 | 2001 | 2154 | 2250 | 2352 | 2426 | 2506 | 2601 | 2733 | 2865 | 3012 | 3129 | 3342 | 3576 | 3759 | 3877 | 3943 | 4184 | 4521 | 5254 |
Better Fuel Economy Factory Ratios Increased Power
