Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/70-22.5 | 255/80-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 39.31 (998.5) | 38.56 (979.5) | -0.75 (-19) -1.9% |
| Width inches (mm) | 12.01 (305) | 10.04 (255) | -1.97 (-50) -16.4% |
| Circum. inches (mm) | 123.5 (3136.88) | 121.15 (3077.19) | -2.35 (-59.69) -1.9% |
| Sidewall Height inches (mm) | 8.41 (213.5) | 8.03 (204) | -0.37 (-9.5) -4.4% |
| Revolutions per mile (km) | 513.04 (318.79) | 522.99 (324.97) | 9.95 (6.18) 1.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.62 mph (31.57 km/h) |
| 25 mph (40.23 km/h) | 24.52 mph (39.47 km/h) |
| 30 mph (48.28 km/h) | 29.43 mph (47.36 km/h) |
| 35 mph (56.33 km/h) | 34.33 mph (55.26 km/h) |
| 40 mph (64.37 km/h) | 39.24 mph (63.15 km/h) |
| 45 mph (72.42 km/h) | 44.14 mph (71.04 km/h) |
| 50 mph (80.47 km/h) | 49.05 mph (78.94 km/h) |
| 55 mph (88.51 km/h) | 53.95 mph (86.83 km/h) |
| 60 mph (96.56 km/h) | 58.86 mph (94.72 km/h) |
| 65 mph (104.61 km/h) | 63.76 mph (102.62 km/h) |
| 70 mph (112.65 km/h) | 68.67 mph (110.51 km/h) |
| 75 mph (120.7 km/h) | 73.57 mph (118.4 km/h) |
| 80 mph (128.75 km/h) | 78.48 mph (126.3 km/h) |
| 85 mph (136.79 km/h) | 83.38 mph (134.19 km/h) |
| 90 mph (144.84 km/h) | 88.29 mph (142.09 km/h) |
| 95 mph (152.89 km/h) | 93.19 mph (149.98 km/h) |
| 100 mph (160.93 km/h) | 98.1 mph (157.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1331 | 1546 | 1665 | 1739 | 1818 | 1875 | 1937 | 2011 | 2112 | 2214 | 2328 | 2418 | 2583 | 2764 | 2905 | 2996 | 3047 | 3234 | 3494 | 4061 |
Better Fuel Economy Factory Ratios Increased Power
