Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/25-20 | 265/50-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.5) | 28.43 (722.2) | 3.02 (76.7) 11.9% |
| Width inches (mm) | 10.83 (275) | 10.43 (265) | -0.39 (-10) -3.6% |
| Circum. inches (mm) | 79.84 (2027.9) | 89.33 (2268.86) | 9.49 (240.96) 11.9% |
| Sidewall Height inches (mm) | 2.71 (68.75) | 5.22 (132.5) | 2.51 (63.75) 92.7% |
| Revolutions per mile (km) | 793.6 (493.12) | 709.32 (440.75) | -84.28 (-52.37) -10.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.38 mph (36.01 km/h) |
| 25 mph (40.23 km/h) | 27.97 mph (45.01 km/h) |
| 30 mph (48.28 km/h) | 33.56 mph (54.02 km/h) |
| 35 mph (56.33 km/h) | 39.16 mph (63.02 km/h) |
| 40 mph (64.37 km/h) | 44.75 mph (72.02 km/h) |
| 45 mph (72.42 km/h) | 50.35 mph (81.03 km/h) |
| 50 mph (80.47 km/h) | 55.94 mph (90.03 km/h) |
| 55 mph (88.51 km/h) | 61.54 mph (99.03 km/h) |
| 60 mph (96.56 km/h) | 67.13 mph (108.03 km/h) |
| 65 mph (104.61 km/h) | 72.72 mph (117.04 km/h) |
| 70 mph (112.65 km/h) | 78.32 mph (126.04 km/h) |
| 75 mph (120.7 km/h) | 83.91 mph (135.04 km/h) |
| 80 mph (128.75 km/h) | 89.51 mph (144.05 km/h) |
| 85 mph (136.79 km/h) | 95.1 mph (153.05 km/h) |
| 90 mph (144.84 km/h) | 100.69 mph (162.05 km/h) |
| 95 mph (152.89 km/h) | 106.29 mph (171.05 km/h) |
| 100 mph (160.93 km/h) | 111.88 mph (180.06 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1805 | 2097 | 2258 | 2358 | 2466 | 2542 | 2627 | 2727 | 2865 | 3003 | 3157 | 3280 | 3503 | 3748 | 3940 | 4063 | 4132 | 4386 | 4739 | 5507 |
Better Fuel Economy Factory Ratios Increased Power
