Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/90-18 | 235/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.98 (736.2) | 29.03 (737.3) | 0.04 (1.1) 0.1% |
| Width inches (mm) | 6.1 (155) | 9.25 (235) | 3.15 (80) 51.6% |
| Circum. inches (mm) | 91.06 (2312.84) | 91.19 (2316.3) | 0.14 (3.46) 0.1% |
| Sidewall Height inches (mm) | 5.49 (139.5) | 6.01 (152.75) | 0.52 (13.25) 9.5% |
| Revolutions per mile (km) | 695.83 (432.37) | 694.79 (431.72) | -1.04 (-0.65) -0.1% |
235/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.03 mph (32.24 km/h) |
| 25 mph (40.23 km/h) | 25.04 mph (40.29 km/h) |
| 30 mph (48.28 km/h) | 30.04 mph (48.35 km/h) |
| 35 mph (56.33 km/h) | 35.05 mph (56.41 km/h) |
| 40 mph (64.37 km/h) | 40.06 mph (64.47 km/h) |
| 45 mph (72.42 km/h) | 45.07 mph (72.53 km/h) |
| 50 mph (80.47 km/h) | 50.07 mph (80.59 km/h) |
| 55 mph (88.51 km/h) | 55.08 mph (88.65 km/h) |
| 60 mph (96.56 km/h) | 60.09 mph (96.71 km/h) |
| 65 mph (104.61 km/h) | 65.1 mph (104.76 km/h) |
| 70 mph (112.65 km/h) | 70.1 mph (112.82 km/h) |
| 75 mph (120.7 km/h) | 75.11 mph (120.88 km/h) |
| 80 mph (128.75 km/h) | 80.12 mph (128.94 km/h) |
| 85 mph (136.79 km/h) | 85.13 mph (137 km/h) |
| 90 mph (144.84 km/h) | 90.13 mph (145.06 km/h) |
| 95 mph (152.89 km/h) | 95.14 mph (153.12 km/h) |
| 100 mph (160.93 km/h) | 100.15 mph (161.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1768 | 2054 | 2212 | 2310 | 2415 | 2490 | 2573 | 2671 | 2806 | 2942 | 3092 | 3213 | 3431 | 3672 | 3860 | 3980 | 4048 | 4296 | 4642 | 5395 |
Better Fuel Economy Factory Ratios Increased Power
