Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/75-17 | 270/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.74 (679.3) | 32.76 (832) | 6.01 (152.7) 22.5% |
| Width inches (mm) | 6.5 (165) | 10.63 (270) | 4.13 (105) 63.6% |
| Circum. inches (mm) | 84.02 (2134.08) | 102.91 (2613.81) | 18.89 (479.72) 22.5% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 6.38 (162) | 1.51 (38.25) 30.9% |
| Revolutions per mile (km) | 754.11 (468.58) | 615.71 (382.58) | -138.41 (-86) -18.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.5 mph (39.42 km/h) |
| 25 mph (40.23 km/h) | 30.62 mph (49.28 km/h) |
| 30 mph (48.28 km/h) | 36.74 mph (59.13 km/h) |
| 35 mph (56.33 km/h) | 42.87 mph (68.99 km/h) |
| 40 mph (64.37 km/h) | 48.99 mph (78.84 km/h) |
| 45 mph (72.42 km/h) | 55.12 mph (88.7 km/h) |
| 50 mph (80.47 km/h) | 61.24 mph (98.56 km/h) |
| 55 mph (88.51 km/h) | 67.36 mph (108.41 km/h) |
| 60 mph (96.56 km/h) | 73.49 mph (118.27 km/h) |
| 65 mph (104.61 km/h) | 79.61 mph (128.12 km/h) |
| 70 mph (112.65 km/h) | 85.74 mph (137.98 km/h) |
| 75 mph (120.7 km/h) | 91.86 mph (147.83 km/h) |
| 80 mph (128.75 km/h) | 97.98 mph (157.69 km/h) |
| 85 mph (136.79 km/h) | 104.11 mph (167.54 km/h) |
| 90 mph (144.84 km/h) | 110.23 mph (177.4 km/h) |
| 95 mph (152.89 km/h) | 116.36 mph (187.26 km/h) |
| 100 mph (160.93 km/h) | 122.48 mph (197.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1567 | 1820 | 1960 | 2047 | 2140 | 2207 | 2280 | 2367 | 2487 | 2607 | 2740 | 2847 | 3040 | 3254 | 3420 | 3527 | 3587 | 3807 | 4114 | 4781 |
Better Fuel Economy Factory Ratios Increased Power
