Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/25-20 | 255/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.5) | 32.05 (814) | 6.63 (168.5) 26.1% |
| Width inches (mm) | 10.83 (275) | 10.04 (255) | -0.79 (-20) -7.3% |
| Circum. inches (mm) | 79.84 (2027.9) | 100.68 (2557.26) | 20.84 (529.36) 26.1% |
| Sidewall Height inches (mm) | 2.71 (68.75) | 6.02 (153) | 3.32 (84.25) 122.5% |
| Revolutions per mile (km) | 793.6 (493.12) | 629.32 (391.04) | -164.28 (-102.08) -20.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.22 mph (40.59 km/h) |
| 25 mph (40.23 km/h) | 31.53 mph (50.74 km/h) |
| 30 mph (48.28 km/h) | 37.83 mph (60.88 km/h) |
| 35 mph (56.33 km/h) | 44.14 mph (71.03 km/h) |
| 40 mph (64.37 km/h) | 50.44 mph (81.18 km/h) |
| 45 mph (72.42 km/h) | 56.75 mph (91.33 km/h) |
| 50 mph (80.47 km/h) | 63.05 mph (101.47 km/h) |
| 55 mph (88.51 km/h) | 69.36 mph (111.62 km/h) |
| 60 mph (96.56 km/h) | 75.66 mph (121.77 km/h) |
| 65 mph (104.61 km/h) | 81.97 mph (131.91 km/h) |
| 70 mph (112.65 km/h) | 88.27 mph (142.06 km/h) |
| 75 mph (120.7 km/h) | 94.58 mph (152.21 km/h) |
| 80 mph (128.75 km/h) | 100.88 mph (162.36 km/h) |
| 85 mph (136.79 km/h) | 107.19 mph (172.5 km/h) |
| 90 mph (144.84 km/h) | 113.49 mph (182.65 km/h) |
| 95 mph (152.89 km/h) | 119.8 mph (192.8 km/h) |
| 100 mph (160.93 km/h) | 126.1 mph (202.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1602 | 1860 | 2004 | 2092 | 2188 | 2256 | 2331 | 2419 | 2542 | 2665 | 2801 | 2910 | 3108 | 3326 | 3496 | 3605 | 3666 | 3891 | 4205 | 4886 |
Better Fuel Economy Factory Ratios Increased Power
