Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/66-17 | 325/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.77 (781.6) | 34.91 (886.8) | 4.14 (105.2) 13.5% |
| Width inches (mm) | 10.43 (265) | 12.8 (325) | 2.36 (60) 22.6% |
| Circum. inches (mm) | 96.67 (2455.47) | 109.68 (2785.96) | 13.01 (330.5) 13.5% |
| Sidewall Height inches (mm) | 6.89 (174.9) | 8.96 (227.5) | 2.07 (52.6) 30.1% |
| Revolutions per mile (km) | 655.41 (407.25) | 577.66 (358.94) | -77.75 (-48.31) -11.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.69 mph (36.52 km/h) |
| 25 mph (40.23 km/h) | 28.36 mph (45.65 km/h) |
| 30 mph (48.28 km/h) | 34.04 mph (54.78 km/h) |
| 35 mph (56.33 km/h) | 39.71 mph (63.91 km/h) |
| 40 mph (64.37 km/h) | 45.38 mph (73.04 km/h) |
| 45 mph (72.42 km/h) | 51.06 mph (82.17 km/h) |
| 50 mph (80.47 km/h) | 56.73 mph (91.3 km/h) |
| 55 mph (88.51 km/h) | 62.4 mph (100.43 km/h) |
| 60 mph (96.56 km/h) | 68.08 mph (109.56 km/h) |
| 65 mph (104.61 km/h) | 73.75 mph (118.69 km/h) |
| 70 mph (112.65 km/h) | 79.42 mph (127.82 km/h) |
| 75 mph (120.7 km/h) | 85.09 mph (136.95 km/h) |
| 80 mph (128.75 km/h) | 90.77 mph (146.08 km/h) |
| 85 mph (136.79 km/h) | 96.44 mph (155.21 km/h) |
| 90 mph (144.84 km/h) | 102.11 mph (164.34 km/h) |
| 95 mph (152.89 km/h) | 107.79 mph (173.47 km/h) |
| 100 mph (160.93 km/h) | 113.46 mph (182.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1470 | 1708 | 1839 | 1920 | 2008 | 2071 | 2139 | 2221 | 2333 | 2446 | 2571 | 2671 | 2852 | 3053 | 3209 | 3309 | 3365 | 3572 | 3860 | 4485 |
Better Fuel Economy Factory Ratios Increased Power
