Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-20 | 235/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.18 (766.5) | 31.1 (790) | 0.93 (23.5) 3.1% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 94.8 (2408.03) | 97.71 (2481.86) | 2.91 (73.83) 3.1% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 5.55 (141) | 0.46 (11.75) 9.1% |
| Revolutions per mile (km) | 668.32 (415.28) | 648.44 (402.92) | -19.88 (-12.35) -3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.61 mph (33.17 km/h) |
| 25 mph (40.23 km/h) | 25.77 mph (41.47 km/h) |
| 30 mph (48.28 km/h) | 30.92 mph (49.76 km/h) |
| 35 mph (56.33 km/h) | 36.07 mph (58.05 km/h) |
| 40 mph (64.37 km/h) | 41.23 mph (66.35 km/h) |
| 45 mph (72.42 km/h) | 46.38 mph (74.64 km/h) |
| 50 mph (80.47 km/h) | 51.53 mph (82.93 km/h) |
| 55 mph (88.51 km/h) | 56.69 mph (91.23 km/h) |
| 60 mph (96.56 km/h) | 61.84 mph (99.52 km/h) |
| 65 mph (104.61 km/h) | 66.99 mph (107.81 km/h) |
| 70 mph (112.65 km/h) | 72.15 mph (116.11 km/h) |
| 75 mph (120.7 km/h) | 77.3 mph (124.4 km/h) |
| 80 mph (128.75 km/h) | 82.45 mph (132.7 km/h) |
| 85 mph (136.79 km/h) | 87.61 mph (140.99 km/h) |
| 90 mph (144.84 km/h) | 92.76 mph (149.28 km/h) |
| 95 mph (152.89 km/h) | 97.91 mph (157.58 km/h) |
| 100 mph (160.93 km/h) | 103.07 mph (165.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1650 | 1917 | 2064 | 2156 | 2254 | 2324 | 2402 | 2493 | 2619 | 2746 | 2886 | 2998 | 3202 | 3427 | 3602 | 3715 | 3778 | 4010 | 4333 | 5035 |
Better Fuel Economy Factory Ratios Increased Power
