Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-12 | 185/60-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.65 (549.8) | 22.74 (577.6) | 1.09 (27.8) 5.1% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 68 (1727.25) | 71.44 (1814.58) | 3.44 (87.34) 5.1% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 4.37 (111) | -0.45 (-11.5) -9.4% |
| Revolutions per mile (km) | 931.74 (578.95) | 886.89 (551.09) | -44.84 (-27.87) -4.8% |
185/60-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.01 mph (33.81 km/h) |
| 25 mph (40.23 km/h) | 26.26 mph (42.27 km/h) |
| 30 mph (48.28 km/h) | 31.52 mph (50.72 km/h) |
| 35 mph (56.33 km/h) | 36.77 mph (59.18 km/h) |
| 40 mph (64.37 km/h) | 42.02 mph (67.63 km/h) |
| 45 mph (72.42 km/h) | 47.28 mph (76.08 km/h) |
| 50 mph (80.47 km/h) | 52.53 mph (84.54 km/h) |
| 55 mph (88.51 km/h) | 57.78 mph (92.99 km/h) |
| 60 mph (96.56 km/h) | 63.03 mph (101.44 km/h) |
| 65 mph (104.61 km/h) | 68.29 mph (109.9 km/h) |
| 70 mph (112.65 km/h) | 73.54 mph (118.35 km/h) |
| 75 mph (120.7 km/h) | 78.79 mph (126.8 km/h) |
| 80 mph (128.75 km/h) | 84.05 mph (135.26 km/h) |
| 85 mph (136.79 km/h) | 89.3 mph (143.71 km/h) |
| 90 mph (144.84 km/h) | 94.55 mph (152.16 km/h) |
| 95 mph (152.89 km/h) | 99.8 mph (160.62 km/h) |
| 100 mph (160.93 km/h) | 105.06 mph (169.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2257 | 2622 | 2824 | 2948 | 3083 | 3179 | 3285 | 3409 | 3582 | 3755 | 3947 | 4101 | 4379 | 4687 | 4927 | 5081 | 5167 | 5484 | 5926 | 6886 |
Better Fuel Economy Factory Ratios Increased Power
