Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/40-17 | 275/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.98 (659.8) | 27.99 (711) | 2.02 (51.2) 7.8% |
| Width inches (mm) | 11.22 (285) | 10.83 (275) | -0.39 (-10) -3.5% |
| Circum. inches (mm) | 81.61 (2072.82) | 87.94 (2233.67) | 6.33 (160.85) 7.8% |
| Sidewall Height inches (mm) | 4.49 (114) | 6.5 (165) | 2.01 (51) 44.7% |
| Revolutions per mile (km) | 776.4 (482.43) | 720.49 (447.69) | -55.91 (-34.74) -7.2% |
275/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.55 mph (34.68 km/h) |
| 25 mph (40.23 km/h) | 26.94 mph (43.36 km/h) |
| 30 mph (48.28 km/h) | 32.33 mph (52.03 km/h) |
| 35 mph (56.33 km/h) | 37.72 mph (60.7 km/h) |
| 40 mph (64.37 km/h) | 43.1 mph (69.37 km/h) |
| 45 mph (72.42 km/h) | 48.49 mph (78.04 km/h) |
| 50 mph (80.47 km/h) | 53.88 mph (86.71 km/h) |
| 55 mph (88.51 km/h) | 59.27 mph (95.38 km/h) |
| 60 mph (96.56 km/h) | 64.66 mph (104.05 km/h) |
| 65 mph (104.61 km/h) | 70.04 mph (112.73 km/h) |
| 70 mph (112.65 km/h) | 75.43 mph (121.4 km/h) |
| 75 mph (120.7 km/h) | 80.82 mph (130.07 km/h) |
| 80 mph (128.75 km/h) | 86.21 mph (138.74 km/h) |
| 85 mph (136.79 km/h) | 91.6 mph (147.41 km/h) |
| 90 mph (144.84 km/h) | 96.98 mph (156.08 km/h) |
| 95 mph (152.89 km/h) | 102.37 mph (164.75 km/h) |
| 100 mph (160.93 km/h) | 107.76 mph (173.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1834 | 2130 | 2294 | 2395 | 2505 | 2583 | 2668 | 2770 | 2910 | 3051 | 3207 | 3332 | 3558 | 3807 | 4003 | 4127 | 4198 | 4455 | 4814 | 5594 |
Better Fuel Economy Factory Ratios Increased Power
