Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 325/35-23 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 31.96 (811.7) | -0.65 (-16.5) -2% |
| Width inches (mm) | 12.01 (305) | 12.8 (325) | 0.79 (20) 6.6% |
| Circum. inches (mm) | 102.44 (2601.87) | 100.39 (2550.03) | -2.04 (-51.84) -2% |
| Sidewall Height inches (mm) | 4.8 (122) | 4.48 (113.75) | -0.32 (-8.25) -6.8% |
| Revolutions per mile (km) | 618.53 (384.34) | 631.11 (392.15) | 12.57 (7.81) 2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.6 mph (31.55 km/h) |
| 25 mph (40.23 km/h) | 24.5 mph (39.43 km/h) |
| 30 mph (48.28 km/h) | 29.4 mph (47.32 km/h) |
| 35 mph (56.33 km/h) | 34.3 mph (55.2 km/h) |
| 40 mph (64.37 km/h) | 39.2 mph (63.09 km/h) |
| 45 mph (72.42 km/h) | 44.1 mph (70.98 km/h) |
| 50 mph (80.47 km/h) | 49 mph (78.86 km/h) |
| 55 mph (88.51 km/h) | 53.9 mph (86.75 km/h) |
| 60 mph (96.56 km/h) | 58.8 mph (94.64 km/h) |
| 65 mph (104.61 km/h) | 63.71 mph (102.52 km/h) |
| 70 mph (112.65 km/h) | 68.61 mph (110.41 km/h) |
| 75 mph (120.7 km/h) | 73.51 mph (118.3 km/h) |
| 80 mph (128.75 km/h) | 78.41 mph (126.18 km/h) |
| 85 mph (136.79 km/h) | 83.31 mph (134.07 km/h) |
| 90 mph (144.84 km/h) | 88.21 mph (141.96 km/h) |
| 95 mph (152.89 km/h) | 93.11 mph (149.84 km/h) |
| 100 mph (160.93 km/h) | 98.01 mph (157.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1606 | 1866 | 2009 | 2098 | 2194 | 2262 | 2337 | 2426 | 2549 | 2672 | 2809 | 2918 | 3116 | 3335 | 3506 | 3615 | 3677 | 3902 | 4217 | 4900 |
Better Fuel Economy Factory Ratios Increased Power
