Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/70-18 | 235/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 29.03 (737.3) | -3.58 (-90.9) -11% |
| Width inches (mm) | 10.43 (265) | 9.25 (235) | -1.18 (-30) -11.3% |
| Circum. inches (mm) | 102.44 (2601.87) | 91.19 (2316.3) | -11.24 (-285.57) -11% |
| Sidewall Height inches (mm) | 7.3 (185.5) | 6.01 (152.75) | -1.29 (-32.75) -17.7% |
| Revolutions per mile (km) | 618.53 (384.34) | 694.79 (431.72) | 76.26 (47.38) 12.3% |
235/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.8 mph (28.65 km/h) |
| 25 mph (40.23 km/h) | 22.26 mph (35.82 km/h) |
| 30 mph (48.28 km/h) | 26.71 mph (42.98 km/h) |
| 35 mph (56.33 km/h) | 31.16 mph (50.14 km/h) |
| 40 mph (64.37 km/h) | 35.61 mph (57.31 km/h) |
| 45 mph (72.42 km/h) | 40.06 mph (64.47 km/h) |
| 50 mph (80.47 km/h) | 44.51 mph (71.64 km/h) |
| 55 mph (88.51 km/h) | 48.96 mph (78.8 km/h) |
| 60 mph (96.56 km/h) | 53.41 mph (85.96 km/h) |
| 65 mph (104.61 km/h) | 57.87 mph (93.13 km/h) |
| 70 mph (112.65 km/h) | 62.32 mph (100.29 km/h) |
| 75 mph (120.7 km/h) | 66.77 mph (107.45 km/h) |
| 80 mph (128.75 km/h) | 71.22 mph (114.62 km/h) |
| 85 mph (136.79 km/h) | 75.67 mph (121.78 km/h) |
| 90 mph (144.84 km/h) | 80.12 mph (128.94 km/h) |
| 95 mph (152.89 km/h) | 84.57 mph (136.11 km/h) |
| 100 mph (160.93 km/h) | 89.02 mph (143.27 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
