Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/70-12 | 195/90-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.65 (549.8) | 25.82 (655.8) | 4.17 (106) 19.3% |
| Width inches (mm) | 6.89 (175) | 7.68 (195) | 0.79 (20) 11.4% |
| Circum. inches (mm) | 68 (1727.25) | 81.11 (2060.26) | 13.11 (333.01) 19.3% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 6.91 (175.5) | 2.09 (53) 43.3% |
| Revolutions per mile (km) | 931.74 (578.95) | 781.14 (485.38) | -150.6 (-93.58) -16.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.86 mph (38.39 km/h) |
| 25 mph (40.23 km/h) | 29.82 mph (47.99 km/h) |
| 30 mph (48.28 km/h) | 35.78 mph (57.59 km/h) |
| 35 mph (56.33 km/h) | 41.75 mph (67.19 km/h) |
| 40 mph (64.37 km/h) | 47.71 mph (76.78 km/h) |
| 45 mph (72.42 km/h) | 53.68 mph (86.38 km/h) |
| 50 mph (80.47 km/h) | 59.64 mph (95.98 km/h) |
| 55 mph (88.51 km/h) | 65.6 mph (105.58 km/h) |
| 60 mph (96.56 km/h) | 71.57 mph (115.18 km/h) |
| 65 mph (104.61 km/h) | 77.53 mph (124.78 km/h) |
| 70 mph (112.65 km/h) | 83.5 mph (134.37 km/h) |
| 75 mph (120.7 km/h) | 89.46 mph (143.97 km/h) |
| 80 mph (128.75 km/h) | 95.42 mph (153.57 km/h) |
| 85 mph (136.79 km/h) | 101.39 mph (163.17 km/h) |
| 90 mph (144.84 km/h) | 107.35 mph (172.77 km/h) |
| 95 mph (152.89 km/h) | 113.32 mph (182.36 km/h) |
| 100 mph (160.93 km/h) | 119.28 mph (191.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1988 | 2309 | 2487 | 2597 | 2715 | 2800 | 2893 | 3003 | 3155 | 3307 | 3477 | 3612 | 3857 | 4128 | 4339 | 4475 | 4551 | 4830 | 5219 | 6065 |
Better Fuel Economy Factory Ratios Increased Power
