Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/65-17 | 265/65-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.05 (763.3) | 33.56 (852.5) | 3.51 (89.2) 11.7% |
| Width inches (mm) | 10.04 (255) | 10.43 (265) | 0.39 (10) 3.9% |
| Circum. inches (mm) | 94.41 (2397.98) | 105.44 (2678.21) | 11.03 (280.23) 11.7% |
| Sidewall Height inches (mm) | 6.53 (165.75) | 6.78 (172.25) | 0.26 (6.5) 3.9% |
| Revolutions per mile (km) | 671.13 (417.02) | 600.9 (373.38) | -70.22 (-43.63) -10.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.34 mph (35.95 km/h) |
| 25 mph (40.23 km/h) | 27.92 mph (44.94 km/h) |
| 30 mph (48.28 km/h) | 33.51 mph (53.92 km/h) |
| 35 mph (56.33 km/h) | 39.09 mph (62.91 km/h) |
| 40 mph (64.37 km/h) | 44.67 mph (71.9 km/h) |
| 45 mph (72.42 km/h) | 50.26 mph (80.88 km/h) |
| 50 mph (80.47 km/h) | 55.84 mph (89.87 km/h) |
| 55 mph (88.51 km/h) | 61.43 mph (98.86 km/h) |
| 60 mph (96.56 km/h) | 67.01 mph (107.85 km/h) |
| 65 mph (104.61 km/h) | 72.6 mph (116.83 km/h) |
| 70 mph (112.65 km/h) | 78.18 mph (125.82 km/h) |
| 75 mph (120.7 km/h) | 83.76 mph (134.81 km/h) |
| 80 mph (128.75 km/h) | 89.35 mph (143.79 km/h) |
| 85 mph (136.79 km/h) | 94.93 mph (152.78 km/h) |
| 90 mph (144.84 km/h) | 100.52 mph (161.77 km/h) |
| 95 mph (152.89 km/h) | 106.1 mph (170.75 km/h) |
| 100 mph (160.93 km/h) | 111.69 mph (179.74 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1529 | 1776 | 1913 | 1998 | 2089 | 2154 | 2225 | 2310 | 2427 | 2544 | 2674 | 2779 | 2967 | 3175 | 3338 | 3442 | 3501 | 3716 | 4015 | 4666 |
Better Fuel Economy Factory Ratios Increased Power
