Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 35/12.5-26 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 35.01 (889.36) | 2.41 (61.16) 7.4% |
| Width inches (mm) | 12.01 (305) | 12.52 (318) | 0.51 (13) 4.3% |
| Circum. inches (mm) | 102.44 (2601.87) | 110 (2794.01) | 7.56 (192.14) 7.4% |
| Sidewall Height inches (mm) | 4.8 (122) | 4.51 (114.48) | -0.3 (-7.52) -6.2% |
| Revolutions per mile (km) | 618.53 (384.34) | 576 (357.91) | -42.54 (-26.43) -6.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.48 mph (34.56 km/h) |
| 25 mph (40.23 km/h) | 26.85 mph (43.2 km/h) |
| 30 mph (48.28 km/h) | 32.22 mph (51.85 km/h) |
| 35 mph (56.33 km/h) | 37.58 mph (60.49 km/h) |
| 40 mph (64.37 km/h) | 42.95 mph (69.13 km/h) |
| 45 mph (72.42 km/h) | 48.32 mph (77.77 km/h) |
| 50 mph (80.47 km/h) | 53.69 mph (86.41 km/h) |
| 55 mph (88.51 km/h) | 59.06 mph (95.05 km/h) |
| 60 mph (96.56 km/h) | 64.43 mph (103.69 km/h) |
| 65 mph (104.61 km/h) | 69.8 mph (112.33 km/h) |
| 70 mph (112.65 km/h) | 75.17 mph (120.97 km/h) |
| 75 mph (120.7 km/h) | 80.54 mph (129.61 km/h) |
| 80 mph (128.75 km/h) | 85.91 mph (138.26 km/h) |
| 85 mph (136.79 km/h) | 91.28 mph (146.9 km/h) |
| 90 mph (144.84 km/h) | 96.65 mph (155.54 km/h) |
| 95 mph (152.89 km/h) | 102.02 mph (164.18 km/h) |
| 100 mph (160.93 km/h) | 107.38 mph (172.82 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1466 | 1703 | 1834 | 1915 | 2002 | 2065 | 2133 | 2214 | 2327 | 2439 | 2564 | 2663 | 2844 | 3044 | 3200 | 3300 | 3356 | 3562 | 3849 | 4472 |
Better Fuel Economy Factory Ratios Increased Power
