Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/70-17 | 255/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.16 (816.8) | 33.06 (839.8) | 0.91 (23) 2.8% |
| Width inches (mm) | 10.83 (275) | 10.04 (255) | -0.79 (-20) -7.3% |
| Circum. inches (mm) | 101.03 (2566.05) | 103.87 (2638.31) | 2.84 (72.26) 2.8% |
| Sidewall Height inches (mm) | 7.58 (192.5) | 8.03 (204) | 0.45 (11.5) 6% |
| Revolutions per mile (km) | 627.17 (389.7) | 609.99 (379.03) | -17.18 (-10.67) -2.7% |
255/80-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.56 mph (33.09 km/h) |
| 25 mph (40.23 km/h) | 25.7 mph (41.37 km/h) |
| 30 mph (48.28 km/h) | 30.84 mph (49.64 km/h) |
| 35 mph (56.33 km/h) | 35.99 mph (57.91 km/h) |
| 40 mph (64.37 km/h) | 41.13 mph (66.19 km/h) |
| 45 mph (72.42 km/h) | 46.27 mph (74.46 km/h) |
| 50 mph (80.47 km/h) | 51.41 mph (82.73 km/h) |
| 55 mph (88.51 km/h) | 56.55 mph (91.01 km/h) |
| 60 mph (96.56 km/h) | 61.69 mph (99.28 km/h) |
| 65 mph (104.61 km/h) | 66.83 mph (107.55 km/h) |
| 70 mph (112.65 km/h) | 71.97 mph (115.83 km/h) |
| 75 mph (120.7 km/h) | 77.11 mph (124.1 km/h) |
| 80 mph (128.75 km/h) | 82.25 mph (132.37 km/h) |
| 85 mph (136.79 km/h) | 87.39 mph (140.65 km/h) |
| 90 mph (144.84 km/h) | 92.53 mph (148.92 km/h) |
| 95 mph (152.89 km/h) | 97.68 mph (157.19 km/h) |
| 100 mph (160.93 km/h) | 102.82 mph (165.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1552 | 1803 | 1942 | 2028 | 2120 | 2186 | 2259 | 2345 | 2464 | 2583 | 2715 | 2821 | 3012 | 3224 | 3389 | 3494 | 3554 | 3772 | 4076 | 4736 |
Better Fuel Economy Factory Ratios Increased Power
