Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 305/85-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 44.41 (1128.1) | 11.81 (299.9) 36.2% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 102.44 (2601.87) | 139.53 (3544.03) | 37.09 (942.16) 36.2% |
| Sidewall Height inches (mm) | 4.8 (122) | 10.21 (259.25) | 5.4 (137.25) 112.5% |
| Revolutions per mile (km) | 618.53 (384.34) | 454.1 (282.16) | -164.43 (-102.17) -26.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.24 mph (43.84 km/h) |
| 25 mph (40.23 km/h) | 34.05 mph (54.8 km/h) |
| 30 mph (48.28 km/h) | 40.86 mph (65.76 km/h) |
| 35 mph (56.33 km/h) | 47.67 mph (76.72 km/h) |
| 40 mph (64.37 km/h) | 54.48 mph (87.68 km/h) |
| 45 mph (72.42 km/h) | 61.29 mph (98.64 km/h) |
| 50 mph (80.47 km/h) | 68.11 mph (109.61 km/h) |
| 55 mph (88.51 km/h) | 74.92 mph (120.57 km/h) |
| 60 mph (96.56 km/h) | 81.73 mph (131.53 km/h) |
| 65 mph (104.61 km/h) | 88.54 mph (142.49 km/h) |
| 70 mph (112.65 km/h) | 95.35 mph (153.45 km/h) |
| 75 mph (120.7 km/h) | 102.16 mph (164.41 km/h) |
| 80 mph (128.75 km/h) | 108.97 mph (175.37 km/h) |
| 85 mph (136.79 km/h) | 115.78 mph (186.33 km/h) |
| 90 mph (144.84 km/h) | 122.59 mph (197.29 km/h) |
| 95 mph (152.89 km/h) | 129.4 mph (208.25 km/h) |
| 100 mph (160.93 km/h) | 136.21 mph (219.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
