Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/80-15 | 215/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.17 (741) | 28.54 (725) | -0.63 (-16) -2.2% |
| Width inches (mm) | 8.86 (225) | 8.46 (215) | -0.39 (-10) -4.4% |
| Circum. inches (mm) | 91.65 (2327.92) | 89.67 (2277.65) | -1.98 (-50.27) -2.2% |
| Sidewall Height inches (mm) | 7.09 (180) | 6.77 (172) | -0.31 (-8) -4.4% |
| Revolutions per mile (km) | 691.32 (429.57) | 706.58 (439.05) | 15.26 (9.48) 2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.57 mph (31.49 km/h) |
| 25 mph (40.23 km/h) | 24.46 mph (39.36 km/h) |
| 30 mph (48.28 km/h) | 29.35 mph (47.24 km/h) |
| 35 mph (56.33 km/h) | 34.24 mph (55.11 km/h) |
| 40 mph (64.37 km/h) | 39.14 mph (62.98 km/h) |
| 45 mph (72.42 km/h) | 44.03 mph (70.86 km/h) |
| 50 mph (80.47 km/h) | 48.92 mph (78.73 km/h) |
| 55 mph (88.51 km/h) | 53.81 mph (86.6 km/h) |
| 60 mph (96.56 km/h) | 58.7 mph (94.48 km/h) |
| 65 mph (104.61 km/h) | 63.6 mph (102.35 km/h) |
| 70 mph (112.65 km/h) | 68.49 mph (110.22 km/h) |
| 75 mph (120.7 km/h) | 73.38 mph (118.09 km/h) |
| 80 mph (128.75 km/h) | 78.27 mph (125.97 km/h) |
| 85 mph (136.79 km/h) | 83.16 mph (133.84 km/h) |
| 90 mph (144.84 km/h) | 88.06 mph (141.71 km/h) |
| 95 mph (152.89 km/h) | 92.95 mph (149.59 km/h) |
| 100 mph (160.93 km/h) | 97.84 mph (157.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1798 | 2089 | 2250 | 2349 | 2456 | 2533 | 2617 | 2716 | 2854 | 2992 | 3145 | 3267 | 3489 | 3734 | 3925 | 4048 | 4117 | 4369 | 4721 | 5486 |
Better Fuel Economy Factory Ratios Increased Power
