Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 175/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 28.71 (729.3) | 4.15 (105.3) 16.9% |
| Width inches (mm) | 5.31 (135) | 6.89 (175) | 1.57 (40) 29.6% |
| Circum. inches (mm) | 77.18 (1960.35) | 90.2 (2291.16) | 13.02 (330.81) 16.9% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 5.86 (148.75) | 1.07 (27.25) 22.4% |
| Revolutions per mile (km) | 820.95 (510.11) | 702.41 (436.46) | -118.53 (-73.65) -14.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.38 mph (37.62 km/h) |
| 25 mph (40.23 km/h) | 29.22 mph (47.02 km/h) |
| 30 mph (48.28 km/h) | 35.06 mph (56.43 km/h) |
| 35 mph (56.33 km/h) | 40.91 mph (65.83 km/h) |
| 40 mph (64.37 km/h) | 46.75 mph (75.24 km/h) |
| 45 mph (72.42 km/h) | 52.59 mph (84.64 km/h) |
| 50 mph (80.47 km/h) | 58.44 mph (94.05 km/h) |
| 55 mph (88.51 km/h) | 64.28 mph (103.45 km/h) |
| 60 mph (96.56 km/h) | 70.13 mph (112.86 km/h) |
| 65 mph (104.61 km/h) | 75.97 mph (122.26 km/h) |
| 70 mph (112.65 km/h) | 81.81 mph (131.66 km/h) |
| 75 mph (120.7 km/h) | 87.66 mph (141.07 km/h) |
| 80 mph (128.75 km/h) | 93.5 mph (150.47 km/h) |
| 85 mph (136.79 km/h) | 99.34 mph (159.88 km/h) |
| 90 mph (144.84 km/h) | 105.19 mph (169.28 km/h) |
| 95 mph (152.89 km/h) | 111.03 mph (178.69 km/h) |
| 100 mph (160.93 km/h) | 116.88 mph (188.09 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1788 | 2077 | 2236 | 2335 | 2442 | 2518 | 2601 | 2700 | 2837 | 2974 | 3126 | 3248 | 3469 | 3712 | 3902 | 4024 | 4092 | 4343 | 4693 | 5454 |
Better Fuel Economy Factory Ratios Increased Power
