Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/75-15 | 235/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.88 (733.5) | 29.1 (739.2) | 0.22 (5.7) 0.8% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 90.72 (2304.36) | 91.43 (2322.27) | 0.71 (17.91) 0.8% |
| Sidewall Height inches (mm) | 6.94 (176.25) | 5.55 (141) | -1.39 (-35.25) -20% |
| Revolutions per mile (km) | 698.39 (433.96) | 693.01 (430.61) | -5.39 (-3.35) -0.8% |
235/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.16 mph (32.44 km/h) |
| 25 mph (40.23 km/h) | 25.19 mph (40.55 km/h) |
| 30 mph (48.28 km/h) | 30.23 mph (48.66 km/h) |
| 35 mph (56.33 km/h) | 35.27 mph (56.76 km/h) |
| 40 mph (64.37 km/h) | 40.31 mph (64.87 km/h) |
| 45 mph (72.42 km/h) | 45.35 mph (72.98 km/h) |
| 50 mph (80.47 km/h) | 50.39 mph (81.09 km/h) |
| 55 mph (88.51 km/h) | 55.43 mph (89.2 km/h) |
| 60 mph (96.56 km/h) | 60.47 mph (97.31 km/h) |
| 65 mph (104.61 km/h) | 65.51 mph (105.42 km/h) |
| 70 mph (112.65 km/h) | 70.54 mph (113.53 km/h) |
| 75 mph (120.7 km/h) | 75.58 mph (121.64 km/h) |
| 80 mph (128.75 km/h) | 80.62 mph (129.75 km/h) |
| 85 mph (136.79 km/h) | 85.66 mph (137.86 km/h) |
| 90 mph (144.84 km/h) | 90.7 mph (145.97 km/h) |
| 95 mph (152.89 km/h) | 95.74 mph (154.08 km/h) |
| 100 mph (160.93 km/h) | 100.78 mph (162.19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1764 | 2049 | 2206 | 2304 | 2409 | 2484 | 2567 | 2664 | 2799 | 2934 | 3084 | 3204 | 3422 | 3662 | 3850 | 3970 | 4037 | 4285 | 4630 | 5381 |
Better Fuel Economy Factory Ratios Increased Power
