Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-12 | 175/50-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.65 (549.8) | 19.89 (505.2) | -1.76 (-44.6) -8.1% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 68 (1727.25) | 62.49 (1587.13) | -5.52 (-140.12) -8.1% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 3.44 (87.5) | -1.38 (-35) -28.6% |
| Revolutions per mile (km) | 931.74 (578.95) | 1013.99 (630.07) | 82.26 (51.11) 8.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.38 mph (29.58 km/h) |
| 25 mph (40.23 km/h) | 22.97 mph (36.97 km/h) |
| 30 mph (48.28 km/h) | 27.57 mph (44.36 km/h) |
| 35 mph (56.33 km/h) | 32.16 mph (51.76 km/h) |
| 40 mph (64.37 km/h) | 36.76 mph (59.15 km/h) |
| 45 mph (72.42 km/h) | 41.35 mph (66.55 km/h) |
| 50 mph (80.47 km/h) | 45.94 mph (73.94 km/h) |
| 55 mph (88.51 km/h) | 50.54 mph (81.33 km/h) |
| 60 mph (96.56 km/h) | 55.13 mph (88.73 km/h) |
| 65 mph (104.61 km/h) | 59.73 mph (96.12 km/h) |
| 70 mph (112.65 km/h) | 64.32 mph (103.52 km/h) |
| 75 mph (120.7 km/h) | 68.92 mph (110.91 km/h) |
| 80 mph (128.75 km/h) | 73.51 mph (118.3 km/h) |
| 85 mph (136.79 km/h) | 78.1 mph (125.7 km/h) |
| 90 mph (144.84 km/h) | 82.7 mph (133.09 km/h) |
| 95 mph (152.89 km/h) | 87.29 mph (140.49 km/h) |
| 100 mph (160.93 km/h) | 91.89 mph (147.88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
