Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/25-21 | 235/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.81 (680.9) | 30.18 (766.5) | 3.37 (85.6) 12.6% |
| Width inches (mm) | 11.61 (295) | 9.25 (235) | -2.36 (-60) -20.3% |
| Circum. inches (mm) | 84.22 (2139.11) | 94.8 (2408.03) | 10.59 (268.92) 12.6% |
| Sidewall Height inches (mm) | 2.9 (73.75) | 5.09 (129.25) | 2.19 (55.5) 75.3% |
| Revolutions per mile (km) | 752.34 (467.48) | 668.32 (415.28) | -84.02 (-52.21) -11.2% |
235/55-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.51 mph (36.23 km/h) |
| 25 mph (40.23 km/h) | 28.14 mph (45.29 km/h) |
| 30 mph (48.28 km/h) | 33.77 mph (54.35 km/h) |
| 35 mph (56.33 km/h) | 39.4 mph (63.41 km/h) |
| 40 mph (64.37 km/h) | 45.03 mph (72.47 km/h) |
| 45 mph (72.42 km/h) | 50.66 mph (81.53 km/h) |
| 50 mph (80.47 km/h) | 56.29 mph (90.58 km/h) |
| 55 mph (88.51 km/h) | 61.91 mph (99.64 km/h) |
| 60 mph (96.56 km/h) | 67.54 mph (108.7 km/h) |
| 65 mph (104.61 km/h) | 73.17 mph (117.76 km/h) |
| 70 mph (112.65 km/h) | 78.8 mph (126.82 km/h) |
| 75 mph (120.7 km/h) | 84.43 mph (135.88 km/h) |
| 80 mph (128.75 km/h) | 90.06 mph (144.93 km/h) |
| 85 mph (136.79 km/h) | 95.69 mph (153.99 km/h) |
| 90 mph (144.84 km/h) | 101.31 mph (163.05 km/h) |
| 95 mph (152.89 km/h) | 106.94 mph (172.11 km/h) |
| 100 mph (160.93 km/h) | 112.57 mph (181.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1701 | 1976 | 2128 | 2222 | 2323 | 2396 | 2475 | 2569 | 2699 | 2830 | 2975 | 3090 | 3300 | 3532 | 3713 | 3829 | 3894 | 4132 | 4465 | 5189 |
Better Fuel Economy Factory Ratios Increased Power
