Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/50-20 | 235/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.25 (743) | 29.03 (737.3) | -0.22 (-5.7) -0.8% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 91.9 (2334.2) | 91.19 (2316.3) | -0.71 (-17.91) -0.8% |
| Sidewall Height inches (mm) | 4.63 (117.5) | 6.01 (152.75) | 1.39 (35.25) 30% |
| Revolutions per mile (km) | 689.46 (428.41) | 694.79 (431.72) | 5.33 (3.31) 0.8% |
235/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.85 mph (31.94 km/h) |
| 25 mph (40.23 km/h) | 24.81 mph (39.93 km/h) |
| 30 mph (48.28 km/h) | 29.77 mph (47.91 km/h) |
| 35 mph (56.33 km/h) | 34.73 mph (55.9 km/h) |
| 40 mph (64.37 km/h) | 39.69 mph (63.88 km/h) |
| 45 mph (72.42 km/h) | 44.65 mph (71.87 km/h) |
| 50 mph (80.47 km/h) | 49.62 mph (79.85 km/h) |
| 55 mph (88.51 km/h) | 54.58 mph (87.84 km/h) |
| 60 mph (96.56 km/h) | 59.54 mph (95.82 km/h) |
| 65 mph (104.61 km/h) | 64.5 mph (103.81 km/h) |
| 70 mph (112.65 km/h) | 69.46 mph (111.79 km/h) |
| 75 mph (120.7 km/h) | 74.42 mph (119.78 km/h) |
| 80 mph (128.75 km/h) | 79.39 mph (127.76 km/h) |
| 85 mph (136.79 km/h) | 84.35 mph (135.75 km/h) |
| 90 mph (144.84 km/h) | 89.31 mph (143.73 km/h) |
| 95 mph (152.89 km/h) | 94.27 mph (151.72 km/h) |
| 100 mph (160.93 km/h) | 99.23 mph (159.7 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
