Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/60-15 | 275/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.35 (771) | 27.99 (711) | -2.36 (-60) -7.8% |
| Width inches (mm) | 12.8 (325) | 10.83 (275) | -1.97 (-50) -15.4% |
| Circum. inches (mm) | 95.36 (2422.17) | 87.94 (2233.67) | -7.42 (-188.5) -7.8% |
| Sidewall Height inches (mm) | 7.68 (195) | 6.5 (165) | -1.18 (-30) -15.4% |
| Revolutions per mile (km) | 664.42 (412.85) | 720.49 (447.69) | 56.07 (34.84) 8.4% |
275/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.44 mph (29.68 km/h) |
| 25 mph (40.23 km/h) | 23.05 mph (37.1 km/h) |
| 30 mph (48.28 km/h) | 27.67 mph (44.52 km/h) |
| 35 mph (56.33 km/h) | 32.28 mph (51.94 km/h) |
| 40 mph (64.37 km/h) | 36.89 mph (59.36 km/h) |
| 45 mph (72.42 km/h) | 41.5 mph (66.78 km/h) |
| 50 mph (80.47 km/h) | 46.11 mph (74.21 km/h) |
| 55 mph (88.51 km/h) | 50.72 mph (81.63 km/h) |
| 60 mph (96.56 km/h) | 55.33 mph (89.05 km/h) |
| 65 mph (104.61 km/h) | 59.94 mph (96.47 km/h) |
| 70 mph (112.65 km/h) | 64.55 mph (103.89 km/h) |
| 75 mph (120.7 km/h) | 69.16 mph (111.31 km/h) |
| 80 mph (128.75 km/h) | 73.77 mph (118.73 km/h) |
| 85 mph (136.79 km/h) | 78.39 mph (126.15 km/h) |
| 90 mph (144.84 km/h) | 83 mph (133.57 km/h) |
| 95 mph (152.89 km/h) | 87.61 mph (140.99 km/h) |
| 100 mph (160.93 km/h) | 92.22 mph (148.41 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
