Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/80-17 | 265/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.8 (807.8) | 32.65 (829.3) | 0.85 (21.5) 2.7% |
| Width inches (mm) | 9.25 (235) | 10.43 (265) | 1.18 (30) 12.8% |
| Circum. inches (mm) | 99.91 (2537.78) | 102.57 (2605.32) | 2.66 (67.54) 2.7% |
| Sidewall Height inches (mm) | 7.4 (188) | 7.82 (198.75) | 0.42 (10.75) 5.7% |
| Revolutions per mile (km) | 634.15 (394.04) | 617.71 (383.83) | -16.44 (-10.22) -2.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.53 mph (33.04 km/h) |
| 25 mph (40.23 km/h) | 25.67 mph (41.3 km/h) |
| 30 mph (48.28 km/h) | 30.8 mph (49.57 km/h) |
| 35 mph (56.33 km/h) | 35.93 mph (57.83 km/h) |
| 40 mph (64.37 km/h) | 41.06 mph (66.09 km/h) |
| 45 mph (72.42 km/h) | 46.2 mph (74.35 km/h) |
| 50 mph (80.47 km/h) | 51.33 mph (82.61 km/h) |
| 55 mph (88.51 km/h) | 56.46 mph (90.87 km/h) |
| 60 mph (96.56 km/h) | 61.6 mph (99.13 km/h) |
| 65 mph (104.61 km/h) | 66.73 mph (107.39 km/h) |
| 70 mph (112.65 km/h) | 71.86 mph (115.65 km/h) |
| 75 mph (120.7 km/h) | 77 mph (123.91 km/h) |
| 80 mph (128.75 km/h) | 82.13 mph (132.17 km/h) |
| 85 mph (136.79 km/h) | 87.26 mph (140.44 km/h) |
| 90 mph (144.84 km/h) | 92.4 mph (148.7 km/h) |
| 95 mph (152.89 km/h) | 97.53 mph (156.96 km/h) |
| 100 mph (160.93 km/h) | 102.66 mph (165.22 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1572 | 1826 | 1967 | 2054 | 2147 | 2214 | 2288 | 2375 | 2495 | 2615 | 2749 | 2856 | 3050 | 3264 | 3432 | 3539 | 3599 | 3820 | 4127 | 4796 |
Better Fuel Economy Factory Ratios Increased Power
