Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 240/55-16 | 240/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.39 (670.4) | 31.06 (789) | 4.67 (118.6) 17.7% |
| Width inches (mm) | 9.45 (240) | 9.45 (240) | 0 (0) 0% |
| Circum. inches (mm) | 82.92 (2106.12) | 97.59 (2478.72) | 14.67 (372.59) 17.7% |
| Sidewall Height inches (mm) | 5.2 (132) | 8.03 (204) | 2.83 (72) 54.5% |
| Revolutions per mile (km) | 764.13 (474.81) | 649.27 (403.43) | -114.86 (-71.37) -15% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.54 mph (37.88 km/h) |
| 25 mph (40.23 km/h) | 29.42 mph (47.35 km/h) |
| 30 mph (48.28 km/h) | 35.31 mph (56.82 km/h) |
| 35 mph (56.33 km/h) | 41.19 mph (66.29 km/h) |
| 40 mph (64.37 km/h) | 47.08 mph (75.76 km/h) |
| 45 mph (72.42 km/h) | 52.96 mph (85.23 km/h) |
| 50 mph (80.47 km/h) | 58.85 mph (94.7 km/h) |
| 55 mph (88.51 km/h) | 64.73 mph (104.17 km/h) |
| 60 mph (96.56 km/h) | 70.61 mph (113.64 km/h) |
| 65 mph (104.61 km/h) | 76.5 mph (123.11 km/h) |
| 70 mph (112.65 km/h) | 82.38 mph (132.58 km/h) |
| 75 mph (120.7 km/h) | 88.27 mph (142.05 km/h) |
| 80 mph (128.75 km/h) | 94.15 mph (151.52 km/h) |
| 85 mph (136.79 km/h) | 100.04 mph (160.99 km/h) |
| 90 mph (144.84 km/h) | 105.92 mph (170.47 km/h) |
| 95 mph (152.89 km/h) | 111.81 mph (179.94 km/h) |
| 100 mph (160.93 km/h) | 117.69 mph (189.41 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1652 | 1919 | 2067 | 2158 | 2257 | 2327 | 2405 | 2496 | 2623 | 2749 | 2890 | 3002 | 3206 | 3431 | 3607 | 3719 | 3783 | 4015 | 4338 | 5041 |
Better Fuel Economy Factory Ratios Increased Power
