Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 340/85-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 46.76 (1187.6) | 14.15 (359.4) 43.4% |
| Width inches (mm) | 12.01 (305) | 13.39 (340) | 1.38 (35) 11.5% |
| Circum. inches (mm) | 102.44 (2601.87) | 146.89 (3730.96) | 44.45 (1129.09) 43.4% |
| Sidewall Height inches (mm) | 4.8 (122) | 11.38 (289) | 6.57 (167) 136.9% |
| Revolutions per mile (km) | 618.53 (384.34) | 431.35 (268.03) | -187.19 (-116.31) -30.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.68 mph (46.15 km/h) |
| 25 mph (40.23 km/h) | 35.85 mph (57.69 km/h) |
| 30 mph (48.28 km/h) | 43.02 mph (69.23 km/h) |
| 35 mph (56.33 km/h) | 50.19 mph (80.77 km/h) |
| 40 mph (64.37 km/h) | 57.36 mph (92.31 km/h) |
| 45 mph (72.42 km/h) | 64.53 mph (103.85 km/h) |
| 50 mph (80.47 km/h) | 71.7 mph (115.39 km/h) |
| 55 mph (88.51 km/h) | 78.87 mph (126.93 km/h) |
| 60 mph (96.56 km/h) | 86.04 mph (138.46 km/h) |
| 65 mph (104.61 km/h) | 93.21 mph (150 km/h) |
| 70 mph (112.65 km/h) | 100.38 mph (161.54 km/h) |
| 75 mph (120.7 km/h) | 107.55 mph (173.08 km/h) |
| 80 mph (128.75 km/h) | 114.72 mph (184.62 km/h) |
| 85 mph (136.79 km/h) | 121.89 mph (196.16 km/h) |
| 90 mph (144.84 km/h) | 129.06 mph (207.7 km/h) |
| 95 mph (152.89 km/h) | 136.23 mph (219.23 km/h) |
| 100 mph (160.93 km/h) | 143.4 mph (230.77 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
