Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/35-23 | 31.5/12.5-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.41 (797.7) | 31.51 (800.48) | 0.11 (2.78) 0.3% |
| Width inches (mm) | 12.01 (305) | 12.52 (318) | 0.51 (13) 4.3% |
| Circum. inches (mm) | 98.66 (2506.05) | 99.01 (2514.78) | 0.34 (8.73) 0.3% |
| Sidewall Height inches (mm) | 4.2 (106.75) | 4.76 (120.84) | 0.55 (14.09) 13.2% |
| Revolutions per mile (km) | 642.18 (399.03) | 639.95 (397.65) | -2.23 (-1.39) -0.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.07 mph (32.3 km/h) |
| 25 mph (40.23 km/h) | 25.09 mph (40.37 km/h) |
| 30 mph (48.28 km/h) | 30.1 mph (48.45 km/h) |
| 35 mph (56.33 km/h) | 35.12 mph (56.52 km/h) |
| 40 mph (64.37 km/h) | 40.14 mph (64.6 km/h) |
| 45 mph (72.42 km/h) | 45.16 mph (72.67 km/h) |
| 50 mph (80.47 km/h) | 50.17 mph (80.75 km/h) |
| 55 mph (88.51 km/h) | 55.19 mph (88.82 km/h) |
| 60 mph (96.56 km/h) | 60.21 mph (96.9 km/h) |
| 65 mph (104.61 km/h) | 65.23 mph (104.97 km/h) |
| 70 mph (112.65 km/h) | 70.24 mph (113.05 km/h) |
| 75 mph (120.7 km/h) | 75.26 mph (121.12 km/h) |
| 80 mph (128.75 km/h) | 80.28 mph (129.2 km/h) |
| 85 mph (136.79 km/h) | 85.3 mph (137.27 km/h) |
| 90 mph (144.84 km/h) | 90.31 mph (145.35 km/h) |
| 95 mph (152.89 km/h) | 95.33 mph (153.42 km/h) |
| 100 mph (160.93 km/h) | 100.35 mph (161.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1629 | 1892 | 2037 | 2128 | 2225 | 2294 | 2370 | 2460 | 2585 | 2710 | 2848 | 2959 | 3160 | 3382 | 3555 | 3666 | 3728 | 3957 | 4276 | 4969 |
Better Fuel Economy Factory Ratios Increased Power
