Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/55-15 | 24.5/7.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.71 (551.5) | 24.47 (621.66) | 2.76 (70.16) 12.7% |
| Width inches (mm) | 6.1 (155) | 7.52 (191) | 1.42 (36) 23.2% |
| Circum. inches (mm) | 68.21 (1732.59) | 76.89 (1953) | 8.68 (220.41) 12.7% |
| Sidewall Height inches (mm) | 3.36 (85.25) | 4.74 (120.33) | 1.38 (35.08) 41.1% |
| Revolutions per mile (km) | 928.87 (577.17) | 824.04 (512.03) | -104.83 (-65.14) -11.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.54 mph (36.28 km/h) |
| 25 mph (40.23 km/h) | 28.18 mph (45.35 km/h) |
| 30 mph (48.28 km/h) | 33.82 mph (54.42 km/h) |
| 35 mph (56.33 km/h) | 39.45 mph (63.49 km/h) |
| 40 mph (64.37 km/h) | 45.09 mph (72.56 km/h) |
| 45 mph (72.42 km/h) | 50.72 mph (81.63 km/h) |
| 50 mph (80.47 km/h) | 56.36 mph (90.7 km/h) |
| 55 mph (88.51 km/h) | 62 mph (99.77 km/h) |
| 60 mph (96.56 km/h) | 67.63 mph (108.84 km/h) |
| 65 mph (104.61 km/h) | 73.27 mph (117.92 km/h) |
| 70 mph (112.65 km/h) | 78.91 mph (126.99 km/h) |
| 75 mph (120.7 km/h) | 84.54 mph (136.06 km/h) |
| 80 mph (128.75 km/h) | 90.18 mph (145.13 km/h) |
| 85 mph (136.79 km/h) | 95.81 mph (154.2 km/h) |
| 90 mph (144.84 km/h) | 101.45 mph (163.27 km/h) |
| 95 mph (152.89 km/h) | 107.09 mph (172.34 km/h) |
| 100 mph (160.93 km/h) | 112.72 mph (181.41 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2097 | 2436 | 2623 | 2740 | 2864 | 2954 | 3052 | 3168 | 3328 | 3489 | 3668 | 3810 | 4069 | 4355 | 4578 | 4721 | 4801 | 5095 | 5506 | 6398 |
Better Fuel Economy Factory Ratios Increased Power
