Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-17 | 305/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.73 (831.3) | 35.01 (889.3) | 2.28 (58) 7% |
| Width inches (mm) | 9.25 (235) | 12.01 (305) | 2.76 (70) 29.8% |
| Circum. inches (mm) | 102.82 (2611.61) | 109.99 (2793.82) | 7.17 (182.21) 7% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 9.01 (228.75) | 1.14 (29) 14.5% |
| Revolutions per mile (km) | 616.23 (382.91) | 576.04 (357.93) | -40.19 (-24.97) -6.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.4 mph (34.43 km/h) |
| 25 mph (40.23 km/h) | 26.74 mph (43.04 km/h) |
| 30 mph (48.28 km/h) | 32.09 mph (51.65 km/h) |
| 35 mph (56.33 km/h) | 37.44 mph (60.26 km/h) |
| 40 mph (64.37 km/h) | 42.79 mph (68.87 km/h) |
| 45 mph (72.42 km/h) | 48.14 mph (77.47 km/h) |
| 50 mph (80.47 km/h) | 53.49 mph (86.08 km/h) |
| 55 mph (88.51 km/h) | 58.84 mph (94.69 km/h) |
| 60 mph (96.56 km/h) | 64.19 mph (103.3 km/h) |
| 65 mph (104.61 km/h) | 69.54 mph (111.91 km/h) |
| 70 mph (112.65 km/h) | 74.88 mph (120.51 km/h) |
| 75 mph (120.7 km/h) | 80.23 mph (129.12 km/h) |
| 80 mph (128.75 km/h) | 85.58 mph (137.73 km/h) |
| 85 mph (136.79 km/h) | 90.93 mph (146.34 km/h) |
| 90 mph (144.84 km/h) | 96.28 mph (154.95 km/h) |
| 95 mph (152.89 km/h) | 101.63 mph (163.56 km/h) |
| 100 mph (160.93 km/h) | 106.98 mph (172.16 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1466 | 1703 | 1834 | 1915 | 2002 | 2065 | 2133 | 2214 | 2327 | 2439 | 2564 | 2664 | 2844 | 3044 | 3200 | 3300 | 3356 | 3562 | 3849 | 4473 |
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