Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 355/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 29.78 (756.5) | 1.8 (45.6) 6.4% |
| Width inches (mm) | 13.98 (355) | 13.98 (355) | 0 (0) 0% |
| Circum. inches (mm) | 87.93 (2233.36) | 93.57 (2376.61) | 5.64 (143.26) 6.4% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 4.89 (124.25) | 1.4 (35.5) 40% |
| Revolutions per mile (km) | 720.59 (447.76) | 677.16 (420.77) | -43.44 (-26.99) -6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.28 mph (34.25 km/h) |
| 25 mph (40.23 km/h) | 26.6 mph (42.81 km/h) |
| 30 mph (48.28 km/h) | 31.92 mph (51.38 km/h) |
| 35 mph (56.33 km/h) | 37.25 mph (59.94 km/h) |
| 40 mph (64.37 km/h) | 42.57 mph (68.5 km/h) |
| 45 mph (72.42 km/h) | 47.89 mph (77.07 km/h) |
| 50 mph (80.47 km/h) | 53.21 mph (85.63 km/h) |
| 55 mph (88.51 km/h) | 58.53 mph (94.19 km/h) |
| 60 mph (96.56 km/h) | 63.85 mph (102.75 km/h) |
| 65 mph (104.61 km/h) | 69.17 mph (111.32 km/h) |
| 70 mph (112.65 km/h) | 74.49 mph (119.88 km/h) |
| 75 mph (120.7 km/h) | 79.81 mph (128.44 km/h) |
| 80 mph (128.75 km/h) | 85.13 mph (137.01 km/h) |
| 85 mph (136.79 km/h) | 90.45 mph (145.57 km/h) |
| 90 mph (144.84 km/h) | 95.77 mph (154.13 km/h) |
| 95 mph (152.89 km/h) | 101.09 mph (162.69 km/h) |
| 100 mph (160.93 km/h) | 106.41 mph (171.26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1723 | 2002 | 2156 | 2251 | 2354 | 2427 | 2508 | 2603 | 2735 | 2867 | 3014 | 3131 | 3344 | 3578 | 3762 | 3879 | 3945 | 4187 | 4524 | 5258 |
Better Fuel Economy Factory Ratios Increased Power
