Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-19 | 235/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.76 (730.6) | 27.18 (690.3) | -1.59 (-40.3) -5.5% |
| Width inches (mm) | 6.1 (155) | 9.25 (235) | 3.15 (80) 51.6% |
| Circum. inches (mm) | 90.36 (2295.25) | 85.38 (2168.64) | -4.98 (-126.61) -5.5% |
| Sidewall Height inches (mm) | 4.88 (124) | 5.09 (129.25) | 0.21 (5.25) 4.2% |
| Revolutions per mile (km) | 701.16 (435.68) | 742.1 (461.12) | 40.93 (25.44) 5.8% |
235/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.9 mph (30.41 km/h) |
| 25 mph (40.23 km/h) | 23.62 mph (38.01 km/h) |
| 30 mph (48.28 km/h) | 28.35 mph (45.62 km/h) |
| 35 mph (56.33 km/h) | 33.07 mph (53.22 km/h) |
| 40 mph (64.37 km/h) | 37.79 mph (60.82 km/h) |
| 45 mph (72.42 km/h) | 42.52 mph (68.43 km/h) |
| 50 mph (80.47 km/h) | 47.24 mph (76.03 km/h) |
| 55 mph (88.51 km/h) | 51.97 mph (83.63 km/h) |
| 60 mph (96.56 km/h) | 56.69 mph (91.23 km/h) |
| 65 mph (104.61 km/h) | 61.41 mph (98.84 km/h) |
| 70 mph (112.65 km/h) | 66.14 mph (106.44 km/h) |
| 75 mph (120.7 km/h) | 70.86 mph (114.04 km/h) |
| 80 mph (128.75 km/h) | 75.59 mph (121.65 km/h) |
| 85 mph (136.79 km/h) | 80.31 mph (129.25 km/h) |
| 90 mph (144.84 km/h) | 85.04 mph (136.85 km/h) |
| 95 mph (152.89 km/h) | 89.76 mph (144.45 km/h) |
| 100 mph (160.93 km/h) | 94.48 mph (152.06 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1888 | 2194 | 2363 | 2467 | 2580 | 2660 | 2748 | 2853 | 2997 | 3142 | 3303 | 3431 | 3664 | 3922 | 4123 | 4251 | 4323 | 4589 | 4958 | 5762 |
Better Fuel Economy Factory Ratios Increased Power
