Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/25-20 | 365/25-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.5) | 27.19 (690.5) | 1.77 (45) 7% |
| Width inches (mm) | 10.83 (275) | 14.37 (365) | 3.54 (90) 32.7% |
| Circum. inches (mm) | 79.84 (2027.9) | 85.4 (2169.27) | 5.57 (141.37) 7% |
| Sidewall Height inches (mm) | 2.71 (68.75) | 3.59 (91.25) | 0.89 (22.5) 32.7% |
| Revolutions per mile (km) | 793.6 (493.12) | 741.88 (460.98) | -51.72 (-32.14) -6.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.39 mph (34.43 km/h) |
| 25 mph (40.23 km/h) | 26.74 mph (43.04 km/h) |
| 30 mph (48.28 km/h) | 32.09 mph (51.65 km/h) |
| 35 mph (56.33 km/h) | 37.44 mph (60.25 km/h) |
| 40 mph (64.37 km/h) | 42.79 mph (68.86 km/h) |
| 45 mph (72.42 km/h) | 48.14 mph (77.47 km/h) |
| 50 mph (80.47 km/h) | 53.49 mph (86.08 km/h) |
| 55 mph (88.51 km/h) | 58.83 mph (94.68 km/h) |
| 60 mph (96.56 km/h) | 64.18 mph (103.29 km/h) |
| 65 mph (104.61 km/h) | 69.53 mph (111.9 km/h) |
| 70 mph (112.65 km/h) | 74.88 mph (120.51 km/h) |
| 75 mph (120.7 km/h) | 80.23 mph (129.12 km/h) |
| 80 mph (128.75 km/h) | 85.58 mph (137.72 km/h) |
| 85 mph (136.79 km/h) | 90.93 mph (146.33 km/h) |
| 90 mph (144.84 km/h) | 96.27 mph (154.94 km/h) |
| 95 mph (152.89 km/h) | 101.62 mph (163.55 km/h) |
| 100 mph (160.93 km/h) | 106.97 mph (172.15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1888 | 2193 | 2362 | 2466 | 2579 | 2659 | 2748 | 2852 | 2997 | 3141 | 3302 | 3430 | 3663 | 3921 | 4121 | 4250 | 4322 | 4587 | 4957 | 5760 |
Better Fuel Economy Factory Ratios Increased Power
