Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/60-18 | 235/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.91 (607.2) | 26.25 (666.8) | 2.35 (59.6) 9.8% |
| Width inches (mm) | 4.92 (125) | 9.25 (235) | 4.33 (110) 88% |
| Circum. inches (mm) | 75.1 (1907.58) | 82.47 (2094.81) | 7.37 (187.24) 9.8% |
| Sidewall Height inches (mm) | 2.95 (75) | 4.63 (117.5) | 1.67 (42.5) 56.7% |
| Revolutions per mile (km) | 843.66 (524.22) | 768.25 (477.37) | -75.41 (-46.86) -8.9% |
235/50-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.96 mph (35.35 km/h) |
| 25 mph (40.23 km/h) | 27.45 mph (44.18 km/h) |
| 30 mph (48.28 km/h) | 32.94 mph (53.02 km/h) |
| 35 mph (56.33 km/h) | 38.44 mph (61.86 km/h) |
| 40 mph (64.37 km/h) | 43.93 mph (70.69 km/h) |
| 45 mph (72.42 km/h) | 49.42 mph (79.53 km/h) |
| 50 mph (80.47 km/h) | 54.91 mph (88.37 km/h) |
| 55 mph (88.51 km/h) | 60.4 mph (97.2 km/h) |
| 60 mph (96.56 km/h) | 65.89 mph (106.04 km/h) |
| 65 mph (104.61 km/h) | 71.38 mph (114.88 km/h) |
| 70 mph (112.65 km/h) | 76.87 mph (123.71 km/h) |
| 75 mph (120.7 km/h) | 82.36 mph (132.55 km/h) |
| 80 mph (128.75 km/h) | 87.85 mph (141.39 km/h) |
| 85 mph (136.79 km/h) | 93.34 mph (150.22 km/h) |
| 90 mph (144.84 km/h) | 98.83 mph (159.06 km/h) |
| 95 mph (152.89 km/h) | 104.32 mph (167.89 km/h) |
| 100 mph (160.93 km/h) | 109.82 mph (176.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1955 | 2271 | 2446 | 2554 | 2671 | 2754 | 2845 | 2953 | 3103 | 3253 | 3419 | 3552 | 3794 | 4060 | 4268 | 4401 | 4476 | 4750 | 5133 | 5965 |
Better Fuel Economy Factory Ratios Increased Power
