Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-15 | 245/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.18 (639.5) | 24.65 (626) | -0.53 (-13.5) -2.1% |
| Width inches (mm) | 9.25 (235) | 9.65 (245) | 0.39 (10) 4.3% |
| Circum. inches (mm) | 79.1 (2009.05) | 77.43 (1966.64) | -1.67 (-42.41) -2.1% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 4.82 (122.5) | -0.27 (-6.75) -5.2% |
| Revolutions per mile (km) | 801.05 (497.75) | 818.32 (508.48) | 17.27 (10.73) 2.2% |
245/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.58 mph (31.51 km/h) |
| 25 mph (40.23 km/h) | 24.47 mph (39.38 km/h) |
| 30 mph (48.28 km/h) | 29.37 mph (47.26 km/h) |
| 35 mph (56.33 km/h) | 34.26 mph (55.14 km/h) |
| 40 mph (64.37 km/h) | 39.16 mph (63.01 km/h) |
| 45 mph (72.42 km/h) | 44.05 mph (70.89 km/h) |
| 50 mph (80.47 km/h) | 48.94 mph (78.77 km/h) |
| 55 mph (88.51 km/h) | 53.84 mph (86.65 km/h) |
| 60 mph (96.56 km/h) | 58.73 mph (94.52 km/h) |
| 65 mph (104.61 km/h) | 63.63 mph (102.4 km/h) |
| 70 mph (112.65 km/h) | 68.52 mph (110.28 km/h) |
| 75 mph (120.7 km/h) | 73.42 mph (118.15 km/h) |
| 80 mph (128.75 km/h) | 78.31 mph (126.03 km/h) |
| 85 mph (136.79 km/h) | 83.21 mph (133.91 km/h) |
| 90 mph (144.84 km/h) | 88.1 mph (141.78 km/h) |
| 95 mph (152.89 km/h) | 92.99 mph (149.66 km/h) |
| 100 mph (160.93 km/h) | 97.89 mph (157.54 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2082 | 2419 | 2605 | 2721 | 2845 | 2933 | 3031 | 3146 | 3305 | 3465 | 3642 | 3784 | 4041 | 4324 | 4546 | 4688 | 4768 | 5060 | 5468 | 6354 |
Better Fuel Economy Factory Ratios Increased Power
