Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-15 | 215/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.87 (581) | 26.31 (668.3) | 3.44 (87.3) 15% |
| Width inches (mm) | 4.92 (125) | 8.46 (215) | 3.54 (90) 72% |
| Circum. inches (mm) | 71.86 (1825.27) | 82.66 (2099.53) | 10.8 (274.26) 15% |
| Sidewall Height inches (mm) | 3.94 (100) | 4.66 (118.25) | 0.72 (18.25) 18.3% |
| Revolutions per mile (km) | 881.7 (547.86) | 766.53 (476.3) | -115.18 (-71.57) -13.1% |
215/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.01 mph (37.02 km/h) |
| 25 mph (40.23 km/h) | 28.76 mph (46.28 km/h) |
| 30 mph (48.28 km/h) | 34.51 mph (55.53 km/h) |
| 35 mph (56.33 km/h) | 40.26 mph (64.79 km/h) |
| 40 mph (64.37 km/h) | 46.01 mph (74.05 km/h) |
| 45 mph (72.42 km/h) | 51.76 mph (83.3 km/h) |
| 50 mph (80.47 km/h) | 57.51 mph (92.56 km/h) |
| 55 mph (88.51 km/h) | 63.26 mph (101.81 km/h) |
| 60 mph (96.56 km/h) | 69.02 mph (111.07 km/h) |
| 65 mph (104.61 km/h) | 74.77 mph (120.33 km/h) |
| 70 mph (112.65 km/h) | 80.52 mph (129.58 km/h) |
| 75 mph (120.7 km/h) | 86.27 mph (138.84 km/h) |
| 80 mph (128.75 km/h) | 92.02 mph (148.09 km/h) |
| 85 mph (136.79 km/h) | 97.77 mph (157.35 km/h) |
| 90 mph (144.84 km/h) | 103.52 mph (166.6 km/h) |
| 95 mph (152.89 km/h) | 109.27 mph (175.86 km/h) |
| 100 mph (160.93 km/h) | 115.03 mph (185.12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1951 | 2266 | 2440 | 2548 | 2665 | 2748 | 2839 | 2947 | 3096 | 3246 | 3412 | 3544 | 3785 | 4051 | 4258 | 4391 | 4466 | 4740 | 5122 | 5952 |
Better Fuel Economy Factory Ratios Increased Power
