Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 215/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 30.39 (771.9) | -2.22 (-56.3) -6.8% |
| Width inches (mm) | 12.01 (305) | 8.46 (215) | -3.54 (-90) -29.5% |
| Circum. inches (mm) | 102.44 (2601.87) | 95.47 (2425) | -6.96 (-176.87) -6.8% |
| Sidewall Height inches (mm) | 4.8 (122) | 7.19 (182.75) | 2.39 (60.75) 49.8% |
| Revolutions per mile (km) | 618.53 (384.34) | 663.65 (412.37) | 45.11 (28.03) 7.3% |
215/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.64 mph (30 km/h) |
| 25 mph (40.23 km/h) | 23.3 mph (37.5 km/h) |
| 30 mph (48.28 km/h) | 27.96 mph (45 km/h) |
| 35 mph (56.33 km/h) | 32.62 mph (52.5 km/h) |
| 40 mph (64.37 km/h) | 37.28 mph (60 km/h) |
| 45 mph (72.42 km/h) | 41.94 mph (67.5 km/h) |
| 50 mph (80.47 km/h) | 46.6 mph (75 km/h) |
| 55 mph (88.51 km/h) | 51.26 mph (82.5 km/h) |
| 60 mph (96.56 km/h) | 55.92 mph (90 km/h) |
| 65 mph (104.61 km/h) | 60.58 mph (97.5 km/h) |
| 70 mph (112.65 km/h) | 65.24 mph (105 km/h) |
| 75 mph (120.7 km/h) | 69.9 mph (112.5 km/h) |
| 80 mph (128.75 km/h) | 74.56 mph (120 km/h) |
| 85 mph (136.79 km/h) | 79.22 mph (127.5 km/h) |
| 90 mph (144.84 km/h) | 83.88 mph (135 km/h) |
| 95 mph (152.89 km/h) | 88.54 mph (142.49 km/h) |
| 100 mph (160.93 km/h) | 93.2 mph (149.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1689 | 1962 | 2113 | 2206 | 2307 | 2379 | 2458 | 2551 | 2681 | 2810 | 2954 | 3069 | 3277 | 3507 | 3687 | 3802 | 3866 | 4104 | 4434 | 5153 |
Better Fuel Economy Factory Ratios Increased Power
