Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/80-15 | 26/7.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.65 (677) | 25.98 (659.86) | -0.67 (-17.14) -2.5% |
| Width inches (mm) | 7.28 (185) | 7.52 (191) | 0.24 (6) 3.2% |
| Circum. inches (mm) | 83.73 (2126.86) | 81.61 (2073.01) | -2.12 (-53.85) -2.5% |
| Sidewall Height inches (mm) | 5.83 (148) | 5.49 (139.43) | -0.34 (-8.57) -5.8% |
| Revolutions per mile (km) | 756.68 (470.18) | 776.33 (482.39) | 19.65 (12.21) 2.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.49 mph (31.37 km/h) |
| 25 mph (40.23 km/h) | 24.37 mph (39.22 km/h) |
| 30 mph (48.28 km/h) | 29.24 mph (47.06 km/h) |
| 35 mph (56.33 km/h) | 34.11 mph (54.9 km/h) |
| 40 mph (64.37 km/h) | 38.99 mph (62.74 km/h) |
| 45 mph (72.42 km/h) | 43.86 mph (70.59 km/h) |
| 50 mph (80.47 km/h) | 48.73 mph (78.43 km/h) |
| 55 mph (88.51 km/h) | 53.61 mph (86.27 km/h) |
| 60 mph (96.56 km/h) | 58.48 mph (94.12 km/h) |
| 65 mph (104.61 km/h) | 63.35 mph (101.96 km/h) |
| 70 mph (112.65 km/h) | 68.23 mph (109.8 km/h) |
| 75 mph (120.7 km/h) | 73.1 mph (117.65 km/h) |
| 80 mph (128.75 km/h) | 77.97 mph (125.49 km/h) |
| 85 mph (136.79 km/h) | 82.85 mph (133.33 km/h) |
| 90 mph (144.84 km/h) | 87.72 mph (141.17 km/h) |
| 95 mph (152.89 km/h) | 92.59 mph (149.02 km/h) |
| 100 mph (160.93 km/h) | 97.47 mph (156.86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1976 | 2295 | 2472 | 2581 | 2699 | 2783 | 2875 | 2984 | 3136 | 3287 | 3455 | 3590 | 3834 | 4103 | 4313 | 4447 | 4523 | 4800 | 5187 | 6028 |
Better Fuel Economy Factory Ratios Increased Power
