Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/55-20 | 275/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.91 (810.5) | 28.91 (734.3) | -3 (-76.2) -9.4% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 100.25 (2546.26) | 90.82 (2306.87) | -9.42 (-239.39) -9.4% |
| Sidewall Height inches (mm) | 5.95 (151.25) | 5.95 (151.25) | 0 (0) 0% |
| Revolutions per mile (km) | 632.04 (392.73) | 697.63 (433.49) | 65.59 (40.75) 10.4% |
275/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.12 mph (29.16 km/h) |
| 25 mph (40.23 km/h) | 22.65 mph (36.45 km/h) |
| 30 mph (48.28 km/h) | 27.18 mph (43.74 km/h) |
| 35 mph (56.33 km/h) | 31.71 mph (51.03 km/h) |
| 40 mph (64.37 km/h) | 36.24 mph (58.32 km/h) |
| 45 mph (72.42 km/h) | 40.77 mph (65.61 km/h) |
| 50 mph (80.47 km/h) | 45.3 mph (72.9 km/h) |
| 55 mph (88.51 km/h) | 49.83 mph (80.19 km/h) |
| 60 mph (96.56 km/h) | 54.36 mph (87.48 km/h) |
| 65 mph (104.61 km/h) | 58.89 mph (94.77 km/h) |
| 70 mph (112.65 km/h) | 63.42 mph (102.06 km/h) |
| 75 mph (120.7 km/h) | 67.95 mph (109.35 km/h) |
| 80 mph (128.75 km/h) | 72.48 mph (116.64 km/h) |
| 85 mph (136.79 km/h) | 77.01 mph (123.93 km/h) |
| 90 mph (144.84 km/h) | 81.54 mph (131.22 km/h) |
| 95 mph (152.89 km/h) | 86.07 mph (138.51 km/h) |
| 100 mph (160.93 km/h) | 90.6 mph (145.8 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1775 | 2062 | 2221 | 2319 | 2425 | 2501 | 2584 | 2682 | 2818 | 2954 | 3105 | 3226 | 3445 | 3687 | 3876 | 3996 | 4064 | 4314 | 4661 | 5417 |
Better Fuel Economy Factory Ratios Increased Power
