Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/35-17 | 235/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.3) | 25.33 (643.3) | -0.08 (-2) -0.3% |
| Width inches (mm) | 12.01 (305) | 9.25 (235) | -2.76 (-70) -23% |
| Circum. inches (mm) | 79.81 (2027.27) | 79.57 (2020.99) | -0.25 (-6.28) -0.3% |
| Sidewall Height inches (mm) | 4.2 (106.75) | 4.16 (105.75) | -0.04 (-1) -0.9% |
| Revolutions per mile (km) | 793.85 (493.27) | 796.32 (494.81) | 2.47 (1.53) 0.3% |
235/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.94 mph (32.09 km/h) |
| 25 mph (40.23 km/h) | 24.92 mph (40.11 km/h) |
| 30 mph (48.28 km/h) | 29.91 mph (48.13 km/h) |
| 35 mph (56.33 km/h) | 34.89 mph (56.15 km/h) |
| 40 mph (64.37 km/h) | 39.88 mph (64.17 km/h) |
| 45 mph (72.42 km/h) | 44.86 mph (72.2 km/h) |
| 50 mph (80.47 km/h) | 49.85 mph (80.22 km/h) |
| 55 mph (88.51 km/h) | 54.83 mph (88.24 km/h) |
| 60 mph (96.56 km/h) | 59.81 mph (96.26 km/h) |
| 65 mph (104.61 km/h) | 64.8 mph (104.28 km/h) |
| 70 mph (112.65 km/h) | 69.78 mph (112.31 km/h) |
| 75 mph (120.7 km/h) | 74.77 mph (120.33 km/h) |
| 80 mph (128.75 km/h) | 79.75 mph (128.35 km/h) |
| 85 mph (136.79 km/h) | 84.74 mph (136.37 km/h) |
| 90 mph (144.84 km/h) | 89.72 mph (144.39 km/h) |
| 95 mph (152.89 km/h) | 94.71 mph (152.41 km/h) |
| 100 mph (160.93 km/h) | 99.69 mph (160.44 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2354 | 2535 | 2647 | 2768 | 2854 | 2949 | 3061 | 3216 | 3372 | 3544 | 3682 | 3932 | 4208 | 4424 | 4562 | 4639 | 4924 | 5321 | 6183 |
Better Fuel Economy Factory Ratios Increased Power
