Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-12 | 165/75-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.15 (486.3) | 22.74 (577.7) | 3.6 (91.4) 18.8% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 60.15 (1527.76) | 71.45 (1814.9) | 11.3 (287.14) 18.8% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 4.87 (123.75) | 1.3 (33) 36.4% |
| Revolutions per mile (km) | 1053.4 (654.55) | 886.74 (550.99) | -166.66 (-103.56) -15.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.76 mph (38.24 km/h) |
| 25 mph (40.23 km/h) | 29.7 mph (47.8 km/h) |
| 30 mph (48.28 km/h) | 35.64 mph (57.35 km/h) |
| 35 mph (56.33 km/h) | 41.58 mph (66.91 km/h) |
| 40 mph (64.37 km/h) | 47.52 mph (76.47 km/h) |
| 45 mph (72.42 km/h) | 53.46 mph (86.03 km/h) |
| 50 mph (80.47 km/h) | 59.4 mph (95.59 km/h) |
| 55 mph (88.51 km/h) | 65.34 mph (105.15 km/h) |
| 60 mph (96.56 km/h) | 71.28 mph (114.71 km/h) |
| 65 mph (104.61 km/h) | 77.22 mph (124.27 km/h) |
| 70 mph (112.65 km/h) | 83.16 mph (133.83 km/h) |
| 75 mph (120.7 km/h) | 89.1 mph (143.39 km/h) |
| 80 mph (128.75 km/h) | 95.04 mph (152.95 km/h) |
| 85 mph (136.79 km/h) | 100.98 mph (162.51 km/h) |
| 90 mph (144.84 km/h) | 106.92 mph (172.06 km/h) |
| 95 mph (152.89 km/h) | 112.86 mph (181.62 km/h) |
| 100 mph (160.93 km/h) | 118.79 mph (191.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2257 | 2621 | 2823 | 2948 | 3082 | 3178 | 3284 | 3409 | 3582 | 3755 | 3947 | 4100 | 4379 | 4686 | 4926 | 5080 | 5166 | 5483 | 5925 | 6885 |
Better Fuel Economy Factory Ratios Increased Power
