Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/45-18 | 235/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.68 (677.7) | 29.03 (737.3) | 2.35 (59.6) 8.8% |
| Width inches (mm) | 9.65 (245) | 9.25 (235) | -0.39 (-10) -4.1% |
| Circum. inches (mm) | 83.82 (2129.06) | 91.19 (2316.3) | 7.37 (187.24) 8.8% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 6.01 (152.75) | 1.67 (42.5) 38.5% |
| Revolutions per mile (km) | 755.9 (469.69) | 694.79 (431.72) | -61.1 (-37.97) -8.1% |
235/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.76 mph (35.02 km/h) |
| 25 mph (40.23 km/h) | 27.2 mph (43.77 km/h) |
| 30 mph (48.28 km/h) | 32.64 mph (52.53 km/h) |
| 35 mph (56.33 km/h) | 38.08 mph (61.28 km/h) |
| 40 mph (64.37 km/h) | 43.52 mph (70.04 km/h) |
| 45 mph (72.42 km/h) | 48.96 mph (78.79 km/h) |
| 50 mph (80.47 km/h) | 54.4 mph (87.54 km/h) |
| 55 mph (88.51 km/h) | 59.84 mph (96.3 km/h) |
| 60 mph (96.56 km/h) | 65.28 mph (105.05 km/h) |
| 65 mph (104.61 km/h) | 70.72 mph (113.81 km/h) |
| 70 mph (112.65 km/h) | 76.16 mph (122.56 km/h) |
| 75 mph (120.7 km/h) | 81.6 mph (131.32 km/h) |
| 80 mph (128.75 km/h) | 87.04 mph (140.07 km/h) |
| 85 mph (136.79 km/h) | 92.48 mph (148.82 km/h) |
| 90 mph (144.84 km/h) | 97.92 mph (157.58 km/h) |
| 95 mph (152.89 km/h) | 103.35 mph (166.33 km/h) |
| 100 mph (160.93 km/h) | 108.79 mph (175.09 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
