Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-14 | 220/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.54 (572.6) | 29.13 (739.8) | 6.58 (167.2) 29.2% |
| Width inches (mm) | 6.1 (155) | 8.66 (220) | 2.56 (65) 41.9% |
| Circum. inches (mm) | 70.82 (1798.88) | 91.5 (2324.15) | 20.68 (525.27) 29.2% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 6.06 (154) | 1.79 (45.5) 41.9% |
| Revolutions per mile (km) | 894.64 (555.9) | 692.44 (430.26) | -202.19 (-125.64) -22.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.84 mph (41.59 km/h) |
| 25 mph (40.23 km/h) | 32.3 mph (51.98 km/h) |
| 30 mph (48.28 km/h) | 38.76 mph (62.38 km/h) |
| 35 mph (56.33 km/h) | 45.22 mph (72.77 km/h) |
| 40 mph (64.37 km/h) | 51.68 mph (83.17 km/h) |
| 45 mph (72.42 km/h) | 58.14 mph (93.57 km/h) |
| 50 mph (80.47 km/h) | 64.6 mph (103.96 km/h) |
| 55 mph (88.51 km/h) | 71.06 mph (114.36 km/h) |
| 60 mph (96.56 km/h) | 77.52 mph (124.76 km/h) |
| 65 mph (104.61 km/h) | 83.98 mph (135.15 km/h) |
| 70 mph (112.65 km/h) | 90.44 mph (145.55 km/h) |
| 75 mph (120.7 km/h) | 96.9 mph (155.95 km/h) |
| 80 mph (128.75 km/h) | 103.36 mph (166.34 km/h) |
| 85 mph (136.79 km/h) | 109.82 mph (176.74 km/h) |
| 90 mph (144.84 km/h) | 116.28 mph (187.14 km/h) |
| 95 mph (152.89 km/h) | 122.74 mph (197.53 km/h) |
| 100 mph (160.93 km/h) | 129.2 mph (207.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1762 | 2047 | 2205 | 2302 | 2407 | 2482 | 2564 | 2662 | 2797 | 2932 | 3082 | 3202 | 3419 | 3659 | 3847 | 3967 | 4034 | 4282 | 4627 | 5376 |
Better Fuel Economy Factory Ratios Increased Power
