Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/85-16 | 225/80-17.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.05 (737.9) | 31.67 (804.5) | 2.62 (66.6) 9% |
| Width inches (mm) | 7.68 (195) | 8.86 (225) | 1.18 (30) 15.4% |
| Circum. inches (mm) | 91.27 (2318.18) | 99.5 (2527.41) | 8.24 (209.23) 9% |
| Sidewall Height inches (mm) | 6.53 (165.75) | 7.09 (180) | 0.56 (14.25) 8.6% |
| Revolutions per mile (km) | 694.23 (431.37) | 636.76 (395.66) | -57.47 (-35.71) -8.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.81 mph (35.09 km/h) |
| 25 mph (40.23 km/h) | 27.26 mph (43.87 km/h) |
| 30 mph (48.28 km/h) | 32.71 mph (52.64 km/h) |
| 35 mph (56.33 km/h) | 38.16 mph (61.41 km/h) |
| 40 mph (64.37 km/h) | 43.61 mph (70.18 km/h) |
| 45 mph (72.42 km/h) | 49.06 mph (78.96 km/h) |
| 50 mph (80.47 km/h) | 54.51 mph (87.73 km/h) |
| 55 mph (88.51 km/h) | 59.96 mph (96.5 km/h) |
| 60 mph (96.56 km/h) | 65.42 mph (105.28 km/h) |
| 65 mph (104.61 km/h) | 70.87 mph (114.05 km/h) |
| 70 mph (112.65 km/h) | 76.32 mph (122.82 km/h) |
| 75 mph (120.7 km/h) | 81.77 mph (131.6 km/h) |
| 80 mph (128.75 km/h) | 87.22 mph (140.37 km/h) |
| 85 mph (136.79 km/h) | 92.67 mph (149.14 km/h) |
| 90 mph (144.84 km/h) | 98.12 mph (157.91 km/h) |
| 95 mph (152.89 km/h) | 103.57 mph (166.69 km/h) |
| 100 mph (160.93 km/h) | 109.03 mph (175.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1620 | 1882 | 2027 | 2117 | 2213 | 2282 | 2358 | 2448 | 2572 | 2696 | 2834 | 2944 | 3144 | 3365 | 3537 | 3648 | 3710 | 3937 | 4254 | 4944 |
Better Fuel Economy Factory Ratios Increased Power
