Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/85-14 | 255/45-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.39 (721.1) | 23.04 (585.1) | -5.35 (-136) -18.9% |
| Width inches (mm) | 8.46 (215) | 10.04 (255) | 1.57 (40) 18.6% |
| Circum. inches (mm) | 89.19 (2265.4) | 72.37 (1838.15) | -16.82 (-427.26) -18.9% |
| Sidewall Height inches (mm) | 7.19 (182.75) | 4.52 (114.75) | -2.68 (-68) -37.2% |
| Revolutions per mile (km) | 710.4 (441.42) | 875.53 (544.03) | 165.12 (102.6) 23.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.23 mph (26.12 km/h) |
| 25 mph (40.23 km/h) | 20.28 mph (32.65 km/h) |
| 30 mph (48.28 km/h) | 24.34 mph (39.17 km/h) |
| 35 mph (56.33 km/h) | 28.4 mph (45.7 km/h) |
| 40 mph (64.37 km/h) | 32.46 mph (52.23 km/h) |
| 45 mph (72.42 km/h) | 36.51 mph (58.76 km/h) |
| 50 mph (80.47 km/h) | 40.57 mph (65.29 km/h) |
| 55 mph (88.51 km/h) | 44.63 mph (71.82 km/h) |
| 60 mph (96.56 km/h) | 48.68 mph (78.35 km/h) |
| 65 mph (104.61 km/h) | 52.74 mph (84.88 km/h) |
| 70 mph (112.65 km/h) | 56.8 mph (91.41 km/h) |
| 75 mph (120.7 km/h) | 60.85 mph (97.94 km/h) |
| 80 mph (128.75 km/h) | 64.91 mph (104.47 km/h) |
| 85 mph (136.79 km/h) | 68.97 mph (110.99 km/h) |
| 90 mph (144.84 km/h) | 73.03 mph (117.52 km/h) |
| 95 mph (152.89 km/h) | 77.08 mph (124.05 km/h) |
| 100 mph (160.93 km/h) | 81.14 mph (130.58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2228 | 2588 | 2787 | 2911 | 3043 | 3138 | 3243 | 3366 | 3536 | 3707 | 3897 | 4048 | 4323 | 4627 | 4864 | 5015 | 5101 | 5414 | 5850 | 6798 |
Better Fuel Economy Factory Ratios Increased Power
