Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/50-15 | 115/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.1 (536) | 21.34 (542) | 0.24 (6) 1.1% |
| Width inches (mm) | 6.1 (155) | 4.53 (115) | -1.57 (-40) -25.8% |
| Circum. inches (mm) | 66.3 (1683.89) | 67.04 (1702.74) | 0.74 (18.85) 1.1% |
| Sidewall Height inches (mm) | 3.05 (77.5) | 3.17 (80.5) | 0.12 (3) 3.9% |
| Revolutions per mile (km) | 955.73 (593.86) | 945.15 (587.29) | -10.58 (-6.57) -1.1% |
115/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.22 mph (32.55 km/h) |
| 25 mph (40.23 km/h) | 25.28 mph (40.68 km/h) |
| 30 mph (48.28 km/h) | 30.34 mph (48.82 km/h) |
| 35 mph (56.33 km/h) | 35.39 mph (56.96 km/h) |
| 40 mph (64.37 km/h) | 40.45 mph (65.09 km/h) |
| 45 mph (72.42 km/h) | 45.5 mph (73.23 km/h) |
| 50 mph (80.47 km/h) | 50.56 mph (81.37 km/h) |
| 55 mph (88.51 km/h) | 55.62 mph (89.5 km/h) |
| 60 mph (96.56 km/h) | 60.67 mph (97.64 km/h) |
| 65 mph (104.61 km/h) | 65.73 mph (105.78 km/h) |
| 70 mph (112.65 km/h) | 70.78 mph (113.92 km/h) |
| 75 mph (120.7 km/h) | 75.84 mph (122.05 km/h) |
| 80 mph (128.75 km/h) | 80.9 mph (130.19 km/h) |
| 85 mph (136.79 km/h) | 85.95 mph (138.33 km/h) |
| 90 mph (144.84 km/h) | 91.01 mph (146.46 km/h) |
| 95 mph (152.89 km/h) | 96.06 mph (154.6 km/h) |
| 100 mph (160.93 km/h) | 101.12 mph (162.74 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
