Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/35-23 | 375/40-26 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.41 (797.7) | 37.81 (960.4) | 6.41 (162.7) 20.4% |
| Width inches (mm) | 12.01 (305) | 14.76 (375) | 2.76 (70) 23% |
| Circum. inches (mm) | 98.66 (2506.05) | 118.79 (3017.19) | 20.12 (511.14) 20.4% |
| Sidewall Height inches (mm) | 4.2 (106.75) | 5.91 (150) | 1.7 (43.25) 40.5% |
| Revolutions per mile (km) | 642.18 (399.03) | 533.39 (331.43) | -108.79 (-67.6) -16.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.08 mph (38.75 km/h) |
| 25 mph (40.23 km/h) | 30.1 mph (48.44 km/h) |
| 30 mph (48.28 km/h) | 36.12 mph (58.13 km/h) |
| 35 mph (56.33 km/h) | 42.14 mph (67.82 km/h) |
| 40 mph (64.37 km/h) | 48.16 mph (77.5 km/h) |
| 45 mph (72.42 km/h) | 54.18 mph (87.19 km/h) |
| 50 mph (80.47 km/h) | 60.2 mph (96.88 km/h) |
| 55 mph (88.51 km/h) | 66.22 mph (106.57 km/h) |
| 60 mph (96.56 km/h) | 72.24 mph (116.26 km/h) |
| 65 mph (104.61 km/h) | 78.26 mph (125.94 km/h) |
| 70 mph (112.65 km/h) | 84.28 mph (135.63 km/h) |
| 75 mph (120.7 km/h) | 90.3 mph (145.32 km/h) |
| 80 mph (128.75 km/h) | 96.32 mph (155.01 km/h) |
| 85 mph (136.79 km/h) | 102.34 mph (164.7 km/h) |
| 90 mph (144.84 km/h) | 108.36 mph (174.38 km/h) |
| 95 mph (152.89 km/h) | 114.38 mph (184.07 km/h) |
| 100 mph (160.93 km/h) | 120.4 mph (193.76 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1357 | 1577 | 1698 | 1773 | 1854 | 1912 | 1975 | 2051 | 2154 | 2258 | 2374 | 2466 | 2634 | 2819 | 2963 | 3056 | 3108 | 3298 | 3564 | 4141 |
Better Fuel Economy Factory Ratios Increased Power
