Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/55-20 | 275/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.91 (810.5) | 31.07 (789.3) | -0.83 (-21.2) -2.6% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 100.25 (2546.26) | 97.62 (2479.66) | -2.62 (-66.6) -2.6% |
| Sidewall Height inches (mm) | 5.95 (151.25) | 7.04 (178.75) | 1.08 (27.5) 18.2% |
| Revolutions per mile (km) | 632.04 (392.73) | 649.02 (403.28) | 16.98 (10.55) 2.7% |
275/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.48 mph (31.35 km/h) |
| 25 mph (40.23 km/h) | 24.35 mph (39.18 km/h) |
| 30 mph (48.28 km/h) | 29.22 mph (47.02 km/h) |
| 35 mph (56.33 km/h) | 34.08 mph (54.85 km/h) |
| 40 mph (64.37 km/h) | 38.95 mph (62.69 km/h) |
| 45 mph (72.42 km/h) | 43.82 mph (70.53 km/h) |
| 50 mph (80.47 km/h) | 48.69 mph (78.36 km/h) |
| 55 mph (88.51 km/h) | 53.56 mph (86.2 km/h) |
| 60 mph (96.56 km/h) | 58.43 mph (94.04 km/h) |
| 65 mph (104.61 km/h) | 63.3 mph (101.87 km/h) |
| 70 mph (112.65 km/h) | 68.17 mph (109.71 km/h) |
| 75 mph (120.7 km/h) | 73.04 mph (117.54 km/h) |
| 80 mph (128.75 km/h) | 77.91 mph (125.38 km/h) |
| 85 mph (136.79 km/h) | 82.78 mph (133.22 km/h) |
| 90 mph (144.84 km/h) | 87.65 mph (141.05 km/h) |
| 95 mph (152.89 km/h) | 92.52 mph (148.89 km/h) |
| 100 mph (160.93 km/h) | 97.38 mph (156.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1652 | 1919 | 2066 | 2158 | 2256 | 2326 | 2404 | 2495 | 2622 | 2748 | 2889 | 3001 | 3205 | 3430 | 3605 | 3718 | 3781 | 4013 | 4336 | 5039 |
Better Fuel Economy Factory Ratios Increased Power
