Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/50-17 | 275/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.04 (686.8) | 26.74 (679.3) | -0.3 (-7.5) -1.1% |
| Width inches (mm) | 10.04 (255) | 10.83 (275) | 0.79 (20) 7.8% |
| Circum. inches (mm) | 84.95 (2157.65) | 84.02 (2134.08) | -0.93 (-23.56) -1.1% |
| Sidewall Height inches (mm) | 5.02 (127.5) | 4.87 (123.75) | -0.15 (-3.75) -2.9% |
| Revolutions per mile (km) | 745.88 (463.47) | 754.11 (468.58) | 8.24 (5.12) 1.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.78 mph (31.84 km/h) |
| 25 mph (40.23 km/h) | 24.73 mph (39.79 km/h) |
| 30 mph (48.28 km/h) | 29.67 mph (47.75 km/h) |
| 35 mph (56.33 km/h) | 34.62 mph (55.71 km/h) |
| 40 mph (64.37 km/h) | 39.56 mph (63.67 km/h) |
| 45 mph (72.42 km/h) | 44.51 mph (71.63 km/h) |
| 50 mph (80.47 km/h) | 49.45 mph (79.59 km/h) |
| 55 mph (88.51 km/h) | 54.4 mph (87.55 km/h) |
| 60 mph (96.56 km/h) | 59.34 mph (95.51 km/h) |
| 65 mph (104.61 km/h) | 64.29 mph (103.47 km/h) |
| 70 mph (112.65 km/h) | 69.24 mph (111.42 km/h) |
| 75 mph (120.7 km/h) | 74.18 mph (119.38 km/h) |
| 80 mph (128.75 km/h) | 79.13 mph (127.34 km/h) |
| 85 mph (136.79 km/h) | 84.07 mph (135.3 km/h) |
| 90 mph (144.84 km/h) | 89.02 mph (143.26 km/h) |
| 95 mph (152.89 km/h) | 93.96 mph (151.22 km/h) |
| 100 mph (160.93 km/h) | 98.91 mph (159.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1919 | 2229 | 2401 | 2507 | 2621 | 2703 | 2793 | 2899 | 3046 | 3193 | 3356 | 3487 | 3724 | 3985 | 4189 | 4320 | 4393 | 4663 | 5039 | 5855 |
Better Fuel Economy Factory Ratios Increased Power
