Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/55-16 | 245/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.39 (670.4) | 31.4 (797.5) | 5 (127.1) 19% |
| Width inches (mm) | 9.45 (240) | 9.65 (245) | 0.2 (5) 2.1% |
| Circum. inches (mm) | 82.92 (2106.12) | 98.64 (2505.42) | 15.72 (399.3) 19% |
| Sidewall Height inches (mm) | 5.2 (132) | 8.2 (208.25) | 3 (76.25) 57.8% |
| Revolutions per mile (km) | 764.13 (474.81) | 642.34 (399.13) | -121.78 (-75.67) -15.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.79 mph (38.29 km/h) |
| 25 mph (40.23 km/h) | 29.74 mph (47.86 km/h) |
| 30 mph (48.28 km/h) | 35.69 mph (57.43 km/h) |
| 35 mph (56.33 km/h) | 41.64 mph (67.01 km/h) |
| 40 mph (64.37 km/h) | 47.58 mph (76.58 km/h) |
| 45 mph (72.42 km/h) | 53.53 mph (86.15 km/h) |
| 50 mph (80.47 km/h) | 59.48 mph (95.72 km/h) |
| 55 mph (88.51 km/h) | 65.43 mph (105.3 km/h) |
| 60 mph (96.56 km/h) | 71.38 mph (114.87 km/h) |
| 65 mph (104.61 km/h) | 77.32 mph (124.44 km/h) |
| 70 mph (112.65 km/h) | 83.27 mph (134.01 km/h) |
| 75 mph (120.7 km/h) | 89.22 mph (143.58 km/h) |
| 80 mph (128.75 km/h) | 95.17 mph (153.16 km/h) |
| 85 mph (136.79 km/h) | 101.12 mph (162.73 km/h) |
| 90 mph (144.84 km/h) | 107.06 mph (172.3 km/h) |
| 95 mph (152.89 km/h) | 113.01 mph (181.87 km/h) |
| 100 mph (160.93 km/h) | 118.96 mph (191.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1635 | 1899 | 2045 | 2135 | 2233 | 2302 | 2379 | 2469 | 2595 | 2720 | 2859 | 2970 | 3172 | 3394 | 3568 | 3680 | 3742 | 3972 | 4292 | 4987 |
Better Fuel Economy Factory Ratios Increased Power
