Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 245/65-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 28.54 (724.9) | 0.55 (14) 2% |
| Width inches (mm) | 13.98 (355) | 9.65 (245) | -4.33 (-110) -31% |
| Circum. inches (mm) | 87.93 (2233.36) | 89.66 (2277.34) | 1.73 (43.98) 2% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 6.27 (159.25) | 2.78 (70.5) 79.4% |
| Revolutions per mile (km) | 720.59 (447.76) | 706.68 (439.11) | -13.92 (-8.65) -1.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.39 mph (32.82 km/h) |
| 25 mph (40.23 km/h) | 25.49 mph (41.03 km/h) |
| 30 mph (48.28 km/h) | 30.59 mph (49.23 km/h) |
| 35 mph (56.33 km/h) | 35.69 mph (57.44 km/h) |
| 40 mph (64.37 km/h) | 40.79 mph (65.64 km/h) |
| 45 mph (72.42 km/h) | 45.89 mph (73.85 km/h) |
| 50 mph (80.47 km/h) | 50.98 mph (82.05 km/h) |
| 55 mph (88.51 km/h) | 56.08 mph (90.26 km/h) |
| 60 mph (96.56 km/h) | 61.18 mph (98.46 km/h) |
| 65 mph (104.61 km/h) | 66.28 mph (106.67 km/h) |
| 70 mph (112.65 km/h) | 71.38 mph (114.87 km/h) |
| 75 mph (120.7 km/h) | 76.48 mph (123.08 km/h) |
| 80 mph (128.75 km/h) | 81.58 mph (131.28 km/h) |
| 85 mph (136.79 km/h) | 86.67 mph (139.49 km/h) |
| 90 mph (144.84 km/h) | 91.77 mph (147.69 km/h) |
| 95 mph (152.89 km/h) | 96.87 mph (155.9 km/h) |
| 100 mph (160.93 km/h) | 101.97 mph (164.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1798 | 2089 | 2250 | 2349 | 2456 | 2533 | 2617 | 2717 | 2854 | 2992 | 3145 | 3268 | 3490 | 3734 | 3926 | 4048 | 4117 | 4370 | 4722 | 5487 |
Better Fuel Economy Factory Ratios Increased Power
