Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/70-14 | 115/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.34 (516.6) | 21.34 (542) | 1 (25.4) 4.9% |
| Width inches (mm) | 4.53 (115) | 4.53 (115) | 0 (0) 0% |
| Circum. inches (mm) | 63.9 (1622.95) | 67.04 (1702.74) | 3.14 (79.8) 4.9% |
| Sidewall Height inches (mm) | 3.17 (80.5) | 3.17 (80.5) | 0 (0) 0% |
| Revolutions per mile (km) | 991.62 (616.16) | 945.15 (587.29) | -46.47 (-28.88) -4.7% |
115/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.98 mph (33.77 km/h) |
| 25 mph (40.23 km/h) | 26.23 mph (42.21 km/h) |
| 30 mph (48.28 km/h) | 31.48 mph (50.65 km/h) |
| 35 mph (56.33 km/h) | 36.72 mph (59.1 km/h) |
| 40 mph (64.37 km/h) | 41.97 mph (67.54 km/h) |
| 45 mph (72.42 km/h) | 47.21 mph (75.98 km/h) |
| 50 mph (80.47 km/h) | 52.46 mph (84.42 km/h) |
| 55 mph (88.51 km/h) | 57.7 mph (92.87 km/h) |
| 60 mph (96.56 km/h) | 62.95 mph (101.31 km/h) |
| 65 mph (104.61 km/h) | 68.2 mph (109.75 km/h) |
| 70 mph (112.65 km/h) | 73.44 mph (118.19 km/h) |
| 75 mph (120.7 km/h) | 78.69 mph (126.64 km/h) |
| 80 mph (128.75 km/h) | 83.93 mph (135.08 km/h) |
| 85 mph (136.79 km/h) | 89.18 mph (143.52 km/h) |
| 90 mph (144.84 km/h) | 94.43 mph (151.96 km/h) |
| 95 mph (152.89 km/h) | 99.67 mph (160.41 km/h) |
| 100 mph (160.93 km/h) | 104.92 mph (168.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
