Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-17 | 275/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.73 (831.3) | 27.83 (706.8) | -4.9 (-124.5) -15% |
| Width inches (mm) | 9.25 (235) | 10.83 (275) | 1.57 (40) 17% |
| Circum. inches (mm) | 102.82 (2611.61) | 87.42 (2220.48) | -15.4 (-391.13) -15% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 5.41 (137.5) | -2.45 (-62.25) -31.2% |
| Revolutions per mile (km) | 616.23 (382.91) | 724.77 (450.35) | 108.55 (67.45) 17.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17 mph (27.37 km/h) |
| 25 mph (40.23 km/h) | 21.26 mph (34.21 km/h) |
| 30 mph (48.28 km/h) | 25.51 mph (41.05 km/h) |
| 35 mph (56.33 km/h) | 29.76 mph (47.89 km/h) |
| 40 mph (64.37 km/h) | 34.01 mph (54.73 km/h) |
| 45 mph (72.42 km/h) | 38.26 mph (61.57 km/h) |
| 50 mph (80.47 km/h) | 42.51 mph (68.42 km/h) |
| 55 mph (88.51 km/h) | 46.76 mph (75.26 km/h) |
| 60 mph (96.56 km/h) | 51.01 mph (82.1 km/h) |
| 65 mph (104.61 km/h) | 55.27 mph (88.94 km/h) |
| 70 mph (112.65 km/h) | 59.52 mph (95.78 km/h) |
| 75 mph (120.7 km/h) | 63.77 mph (102.62 km/h) |
| 80 mph (128.75 km/h) | 68.02 mph (109.47 km/h) |
| 85 mph (136.79 km/h) | 72.27 mph (116.31 km/h) |
| 90 mph (144.84 km/h) | 76.52 mph (123.15 km/h) |
| 95 mph (152.89 km/h) | 80.77 mph (129.99 km/h) |
| 100 mph (160.93 km/h) | 85.02 mph (136.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1844 | 2143 | 2307 | 2410 | 2519 | 2598 | 2684 | 2786 | 2928 | 3069 | 3226 | 3351 | 3579 | 3830 | 4026 | 4152 | 4223 | 4482 | 4843 | 5627 |
Better Fuel Economy Factory Ratios Increased Power
