Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/80-14 | 27/8.5-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.54 (699.6) | 26.93 (683.92) | -0.62 (-15.68) -2.2% |
| Width inches (mm) | 8.46 (215) | 8.5 (216) | 0.04 (1) 0.5% |
| Circum. inches (mm) | 86.53 (2197.86) | 84.59 (2148.6) | -1.94 (-49.26) -2.2% |
| Sidewall Height inches (mm) | 6.77 (172) | 6.46 (164.16) | -0.31 (-7.84) -4.6% |
| Revolutions per mile (km) | 732.23 (454.99) | 749.02 (465.42) | 16.79 (10.43) 2.3% |
27/8.5-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.55 mph (31.47 km/h) |
| 25 mph (40.23 km/h) | 24.44 mph (39.33 km/h) |
| 30 mph (48.28 km/h) | 29.33 mph (47.2 km/h) |
| 35 mph (56.33 km/h) | 34.22 mph (55.06 km/h) |
| 40 mph (64.37 km/h) | 39.1 mph (62.93 km/h) |
| 45 mph (72.42 km/h) | 43.99 mph (70.8 km/h) |
| 50 mph (80.47 km/h) | 48.88 mph (78.66 km/h) |
| 55 mph (88.51 km/h) | 53.77 mph (86.53 km/h) |
| 60 mph (96.56 km/h) | 58.66 mph (94.4 km/h) |
| 65 mph (104.61 km/h) | 63.54 mph (102.26 km/h) |
| 70 mph (112.65 km/h) | 68.43 mph (110.13 km/h) |
| 75 mph (120.7 km/h) | 73.32 mph (118 km/h) |
| 80 mph (128.75 km/h) | 78.21 mph (125.86 km/h) |
| 85 mph (136.79 km/h) | 83.09 mph (133.73 km/h) |
| 90 mph (144.84 km/h) | 87.98 mph (141.59 km/h) |
| 95 mph (152.89 km/h) | 92.87 mph (149.46 km/h) |
| 100 mph (160.93 km/h) | 97.76 mph (157.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1906 | 2214 | 2385 | 2490 | 2604 | 2685 | 2774 | 2879 | 3025 | 3171 | 3334 | 3463 | 3699 | 3958 | 4161 | 4291 | 4364 | 4631 | 5005 | 5816 |
Better Fuel Economy Factory Ratios Increased Power
