Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 32/10-17 | 270/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32 (812.8) | 36.13 (917.8) | 4.13 (105) 12.9% |
| Width inches (mm) | 10 (254) | 10.63 (270) | 0.63 (16) 6.3% |
| Circum. inches (mm) | 100.53 (2553.49) | 113.52 (2883.35) | 12.99 (329.87) 12.9% |
| Sidewall Height inches (mm) | 7.5 (190.5) | 9.57 (243) | 2.07 (52.5) 27.6% |
| Revolutions per mile (km) | 630.25 (391.62) | 558.15 (346.82) | -72.1 (-44.8) -11.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.58 mph (36.34 km/h) |
| 25 mph (40.23 km/h) | 28.23 mph (45.43 km/h) |
| 30 mph (48.28 km/h) | 33.88 mph (54.52 km/h) |
| 35 mph (56.33 km/h) | 39.52 mph (63.6 km/h) |
| 40 mph (64.37 km/h) | 45.17 mph (72.69 km/h) |
| 45 mph (72.42 km/h) | 50.81 mph (81.78 km/h) |
| 50 mph (80.47 km/h) | 56.46 mph (90.86 km/h) |
| 55 mph (88.51 km/h) | 62.11 mph (99.95 km/h) |
| 60 mph (96.56 km/h) | 67.75 mph (109.03 km/h) |
| 65 mph (104.61 km/h) | 73.4 mph (118.12 km/h) |
| 70 mph (112.65 km/h) | 79.04 mph (127.21 km/h) |
| 75 mph (120.7 km/h) | 84.69 mph (136.29 km/h) |
| 80 mph (128.75 km/h) | 90.33 mph (145.38 km/h) |
| 85 mph (136.79 km/h) | 95.98 mph (154.47 km/h) |
| 90 mph (144.84 km/h) | 101.63 mph (163.55 km/h) |
| 95 mph (152.89 km/h) | 107.27 mph (172.64 km/h) |
| 100 mph (160.93 km/h) | 112.92 mph (181.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1420 | 1650 | 1777 | 1856 | 1940 | 2001 | 2067 | 2146 | 2254 | 2363 | 2484 | 2581 | 2756 | 2950 | 3101 | 3197 | 3252 | 3451 | 3729 | 4334 |
Better Fuel Economy Factory Ratios Increased Power
