Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/75-15 | 245/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.88 (733.5) | 28.5 (724) | -0.37 (-9.5) -1.3% |
| Width inches (mm) | 9.25 (235) | 9.65 (245) | 0.39 (10) 4.3% |
| Circum. inches (mm) | 90.72 (2304.36) | 89.55 (2274.51) | -1.18 (-29.85) -1.3% |
| Sidewall Height inches (mm) | 6.94 (176.25) | 6.75 (171.5) | -0.19 (-4.75) -2.7% |
| Revolutions per mile (km) | 698.39 (433.96) | 707.56 (439.65) | 9.16 (5.69) 1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.74 mph (31.77 km/h) |
| 25 mph (40.23 km/h) | 24.68 mph (39.71 km/h) |
| 30 mph (48.28 km/h) | 29.61 mph (47.66 km/h) |
| 35 mph (56.33 km/h) | 34.55 mph (55.6 km/h) |
| 40 mph (64.37 km/h) | 39.48 mph (63.54 km/h) |
| 45 mph (72.42 km/h) | 44.42 mph (71.48 km/h) |
| 50 mph (80.47 km/h) | 49.35 mph (79.43 km/h) |
| 55 mph (88.51 km/h) | 54.29 mph (87.37 km/h) |
| 60 mph (96.56 km/h) | 59.22 mph (95.31 km/h) |
| 65 mph (104.61 km/h) | 64.16 mph (103.25 km/h) |
| 70 mph (112.65 km/h) | 69.09 mph (111.2 km/h) |
| 75 mph (120.7 km/h) | 74.03 mph (119.14 km/h) |
| 80 mph (128.75 km/h) | 78.96 mph (127.08 km/h) |
| 85 mph (136.79 km/h) | 83.9 mph (135.02 km/h) |
| 90 mph (144.84 km/h) | 88.83 mph (142.97 km/h) |
| 95 mph (152.89 km/h) | 93.77 mph (150.91 km/h) |
| 100 mph (160.93 km/h) | 98.7 mph (158.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1801 | 2092 | 2253 | 2352 | 2460 | 2536 | 2620 | 2720 | 2858 | 2996 | 3149 | 3272 | 3494 | 3739 | 3931 | 4053 | 4122 | 4375 | 4728 | 5494 |
Better Fuel Economy Factory Ratios Increased Power
