Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 245/46-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 26.87 (682.6) | -1.11 (-28.3) -4% |
| Width inches (mm) | 13.98 (355) | 9.65 (245) | -4.33 (-110) -31% |
| Circum. inches (mm) | 87.93 (2233.36) | 84.43 (2144.45) | -3.5 (-88.91) -4% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 4.44 (112.7) | 0.94 (23.95) 27% |
| Revolutions per mile (km) | 720.59 (447.76) | 750.47 (466.32) | 29.88 (18.56) 4.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.2 mph (30.91 km/h) |
| 25 mph (40.23 km/h) | 24 mph (38.63 km/h) |
| 30 mph (48.28 km/h) | 28.81 mph (46.36 km/h) |
| 35 mph (56.33 km/h) | 33.61 mph (54.08 km/h) |
| 40 mph (64.37 km/h) | 38.41 mph (61.81 km/h) |
| 45 mph (72.42 km/h) | 43.21 mph (69.54 km/h) |
| 50 mph (80.47 km/h) | 48.01 mph (77.26 km/h) |
| 55 mph (88.51 km/h) | 52.81 mph (84.99 km/h) |
| 60 mph (96.56 km/h) | 57.61 mph (92.72 km/h) |
| 65 mph (104.61 km/h) | 62.41 mph (100.44 km/h) |
| 70 mph (112.65 km/h) | 67.21 mph (108.17 km/h) |
| 75 mph (120.7 km/h) | 72.01 mph (115.9 km/h) |
| 80 mph (128.75 km/h) | 76.82 mph (123.62 km/h) |
| 85 mph (136.79 km/h) | 81.62 mph (131.35 km/h) |
| 90 mph (144.84 km/h) | 86.42 mph (139.08 km/h) |
| 95 mph (152.89 km/h) | 91.22 mph (146.8 km/h) |
| 100 mph (160.93 km/h) | 96.02 mph (154.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1910 | 2219 | 2389 | 2495 | 2609 | 2690 | 2779 | 2885 | 3031 | 3178 | 3340 | 3470 | 3706 | 3966 | 4169 | 4299 | 4372 | 4640 | 5014 | 5827 |
Better Fuel Economy Factory Ratios Increased Power
