Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/70-17.5 | 235/70-17.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31 (787.5) | 30.45 (773.5) | -0.55 (-14) -1.8% |
| Width inches (mm) | 9.65 (245) | 9.25 (235) | -0.39 (-10) -4.1% |
| Circum. inches (mm) | 97.4 (2474) | 95.67 (2430.02) | -1.73 (-43.98) -1.8% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 6.48 (164.5) | -0.28 (-7) -4.1% |
| Revolutions per mile (km) | 650.5 (404.2) | 662.28 (411.52) | 11.77 (7.32) 1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.64 mph (31.61 km/h) |
| 25 mph (40.23 km/h) | 24.56 mph (39.52 km/h) |
| 30 mph (48.28 km/h) | 29.47 mph (47.42 km/h) |
| 35 mph (56.33 km/h) | 34.38 mph (55.33 km/h) |
| 40 mph (64.37 km/h) | 39.29 mph (63.23 km/h) |
| 45 mph (72.42 km/h) | 44.2 mph (71.13 km/h) |
| 50 mph (80.47 km/h) | 49.11 mph (79.04 km/h) |
| 55 mph (88.51 km/h) | 54.02 mph (86.94 km/h) |
| 60 mph (96.56 km/h) | 58.93 mph (94.84 km/h) |
| 65 mph (104.61 km/h) | 63.84 mph (102.75 km/h) |
| 70 mph (112.65 km/h) | 68.76 mph (110.65 km/h) |
| 75 mph (120.7 km/h) | 73.67 mph (118.56 km/h) |
| 80 mph (128.75 km/h) | 78.58 mph (126.46 km/h) |
| 85 mph (136.79 km/h) | 83.49 mph (134.36 km/h) |
| 90 mph (144.84 km/h) | 88.4 mph (142.27 km/h) |
| 95 mph (152.89 km/h) | 93.31 mph (150.17 km/h) |
| 100 mph (160.93 km/h) | 98.22 mph (158.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1685 | 1958 | 2108 | 2202 | 2302 | 2374 | 2453 | 2546 | 2675 | 2804 | 2948 | 3062 | 3270 | 3500 | 3679 | 3794 | 3858 | 4095 | 4425 | 5142 |
Better Fuel Economy Factory Ratios Increased Power
