Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/50-14 | 175/90-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.89 (530.6) | 26.4 (670.6) | 5.51 (140) 26.4% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 65.63 (1666.93) | 82.94 (2106.75) | 17.32 (439.82) 26.4% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 6.2 (157.5) | 2.76 (70) 80% |
| Revolutions per mile (km) | 965.45 (599.9) | 763.9 (474.66) | -201.56 (-125.24) -20.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.28 mph (40.68 km/h) |
| 25 mph (40.23 km/h) | 31.6 mph (50.85 km/h) |
| 30 mph (48.28 km/h) | 37.92 mph (61.02 km/h) |
| 35 mph (56.33 km/h) | 44.23 mph (71.19 km/h) |
| 40 mph (64.37 km/h) | 50.55 mph (81.36 km/h) |
| 45 mph (72.42 km/h) | 56.87 mph (91.53 km/h) |
| 50 mph (80.47 km/h) | 63.19 mph (101.7 km/h) |
| 55 mph (88.51 km/h) | 69.51 mph (111.87 km/h) |
| 60 mph (96.56 km/h) | 75.83 mph (122.04 km/h) |
| 65 mph (104.61 km/h) | 82.15 mph (132.21 km/h) |
| 70 mph (112.65 km/h) | 88.47 mph (142.38 km/h) |
| 75 mph (120.7 km/h) | 94.79 mph (152.55 km/h) |
| 80 mph (128.75 km/h) | 101.11 mph (162.72 km/h) |
| 85 mph (136.79 km/h) | 107.43 mph (172.89 km/h) |
| 90 mph (144.84 km/h) | 113.75 mph (183.06 km/h) |
| 95 mph (152.89 km/h) | 120.07 mph (193.23 km/h) |
| 100 mph (160.93 km/h) | 126.39 mph (203.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1944 | 2258 | 2432 | 2540 | 2655 | 2738 | 2829 | 2937 | 3086 | 3234 | 3400 | 3532 | 3772 | 4037 | 4244 | 4376 | 4450 | 4723 | 5104 | 5931 |
Better Fuel Economy Factory Ratios Increased Power
