Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 28/10-15 | 305/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28 (711.2) | 25.81 (655.5) | -2.19 (-55.7) -7.8% |
| Width inches (mm) | 10 (254) | 12.01 (305) | 2.01 (51) 20.1% |
| Circum. inches (mm) | 87.96 (2234.3) | 81.08 (2059.31) | -6.89 (-174.99) -7.8% |
| Sidewall Height inches (mm) | 6.5 (165.1) | 5.4 (137.25) | -1.1 (-27.85) -16.9% |
| Revolutions per mile (km) | 720.29 (447.57) | 781.5 (485.6) | 61.21 (38.03) 8.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.43 mph (29.67 km/h) |
| 25 mph (40.23 km/h) | 23.04 mph (37.08 km/h) |
| 30 mph (48.28 km/h) | 27.65 mph (44.5 km/h) |
| 35 mph (56.33 km/h) | 32.26 mph (51.92 km/h) |
| 40 mph (64.37 km/h) | 36.87 mph (59.33 km/h) |
| 45 mph (72.42 km/h) | 41.48 mph (66.75 km/h) |
| 50 mph (80.47 km/h) | 46.08 mph (74.17 km/h) |
| 55 mph (88.51 km/h) | 50.69 mph (81.58 km/h) |
| 60 mph (96.56 km/h) | 55.3 mph (89 km/h) |
| 65 mph (104.61 km/h) | 59.91 mph (96.41 km/h) |
| 70 mph (112.65 km/h) | 64.52 mph (103.83 km/h) |
| 75 mph (120.7 km/h) | 69.13 mph (111.25 km/h) |
| 80 mph (128.75 km/h) | 73.73 mph (118.66 km/h) |
| 85 mph (136.79 km/h) | 78.34 mph (126.08 km/h) |
| 90 mph (144.84 km/h) | 82.95 mph (133.5 km/h) |
| 95 mph (152.89 km/h) | 87.56 mph (140.91 km/h) |
| 100 mph (160.93 km/h) | 92.17 mph (148.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1989 | 2310 | 2488 | 2598 | 2717 | 2801 | 2894 | 3004 | 3157 | 3309 | 3478 | 3614 | 3859 | 4130 | 4341 | 4477 | 4553 | 4832 | 5222 | 6068 |
Better Fuel Economy Factory Ratios Increased Power
