Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-17 | 32/11.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.73 (831.3) | 31.94 (811.4) | -0.78 (-19.9) -2.4% |
| Width inches (mm) | 9.25 (235) | 11.5 (292) | 2.24 (57) 24.3% |
| Circum. inches (mm) | 102.82 (2611.61) | 100.36 (2549.09) | -2.46 (-62.52) -2.4% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 7.47 (189.8) | -0.39 (-9.95) -5% |
| Revolutions per mile (km) | 616.23 (382.91) | 631.34 (392.3) | 15.11 (9.39) 2.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.52 mph (31.42 km/h) |
| 25 mph (40.23 km/h) | 24.4 mph (39.27 km/h) |
| 30 mph (48.28 km/h) | 29.28 mph (47.12 km/h) |
| 35 mph (56.33 km/h) | 34.16 mph (54.98 km/h) |
| 40 mph (64.37 km/h) | 39.04 mph (62.83 km/h) |
| 45 mph (72.42 km/h) | 43.92 mph (70.69 km/h) |
| 50 mph (80.47 km/h) | 48.8 mph (78.54 km/h) |
| 55 mph (88.51 km/h) | 53.68 mph (86.4 km/h) |
| 60 mph (96.56 km/h) | 58.56 mph (94.25 km/h) |
| 65 mph (104.61 km/h) | 63.44 mph (102.1 km/h) |
| 70 mph (112.65 km/h) | 68.32 mph (109.96 km/h) |
| 75 mph (120.7 km/h) | 73.2 mph (117.81 km/h) |
| 80 mph (128.75 km/h) | 78.08 mph (125.67 km/h) |
| 85 mph (136.79 km/h) | 82.97 mph (133.52 km/h) |
| 90 mph (144.84 km/h) | 87.85 mph (141.37 km/h) |
| 95 mph (152.89 km/h) | 92.73 mph (149.23 km/h) |
| 100 mph (160.93 km/h) | 97.61 mph (157.08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1607 | 1866 | 2010 | 2099 | 2195 | 2263 | 2338 | 2427 | 2550 | 2673 | 2810 | 2919 | 3118 | 3336 | 3507 | 3617 | 3678 | 3904 | 4218 | 4902 |
Better Fuel Economy Factory Ratios Increased Power
