Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 27/8.5-15 | 27/9.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.08 (687.72) | 26.96 (684.66) | -0.12 (-3.06) -0.4% |
| Width inches (mm) | 8.5 (216) | 9.49 (241) | 0.98 (25) 11.6% |
| Circum. inches (mm) | 85.06 (2160.54) | 84.68 (2150.92) | -0.38 (-9.61) -0.4% |
| Sidewall Height inches (mm) | 6.04 (153.36) | 5.98 (151.83) | -0.06 (-1.53) -1% |
| Revolutions per mile (km) | 744.88 (462.85) | 748.21 (464.92) | 3.33 (2.07) 0.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.91 mph (32.04 km/h) |
| 25 mph (40.23 km/h) | 24.89 mph (40.05 km/h) |
| 30 mph (48.28 km/h) | 29.87 mph (48.07 km/h) |
| 35 mph (56.33 km/h) | 34.84 mph (56.08 km/h) |
| 40 mph (64.37 km/h) | 39.82 mph (64.09 km/h) |
| 45 mph (72.42 km/h) | 44.8 mph (72.1 km/h) |
| 50 mph (80.47 km/h) | 49.78 mph (80.11 km/h) |
| 55 mph (88.51 km/h) | 54.76 mph (88.12 km/h) |
| 60 mph (96.56 km/h) | 59.73 mph (96.13 km/h) |
| 65 mph (104.61 km/h) | 64.71 mph (104.14 km/h) |
| 70 mph (112.65 km/h) | 69.69 mph (112.15 km/h) |
| 75 mph (120.7 km/h) | 74.67 mph (120.16 km/h) |
| 80 mph (128.75 km/h) | 79.64 mph (128.17 km/h) |
| 85 mph (136.79 km/h) | 84.62 mph (136.19 km/h) |
| 90 mph (144.84 km/h) | 89.6 mph (144.2 km/h) |
| 95 mph (152.89 km/h) | 94.58 mph (152.21 km/h) |
| 100 mph (160.93 km/h) | 99.56 mph (160.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1904 | 2212 | 2382 | 2487 | 2601 | 2682 | 2771 | 2876 | 3022 | 3168 | 3330 | 3460 | 3695 | 3954 | 4157 | 4286 | 4359 | 4626 | 4999 | 5809 |
Better Fuel Economy Factory Ratios Increased Power
