Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-13 | 165/75-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.5 (546.2) | 22.74 (577.7) | 1.24 (31.5) 5.8% |
| Width inches (mm) | 5.31 (135) | 6.5 (165) | 1.18 (30) 22.2% |
| Circum. inches (mm) | 67.56 (1715.94) | 71.45 (1814.9) | 3.9 (98.96) 5.8% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.87 (123.75) | 0.62 (15.75) 14.6% |
| Revolutions per mile (km) | 937.88 (582.77) | 886.74 (550.99) | -51.14 (-31.78) -5.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.15 mph (34.04 km/h) |
| 25 mph (40.23 km/h) | 26.44 mph (42.55 km/h) |
| 30 mph (48.28 km/h) | 31.73 mph (51.06 km/h) |
| 35 mph (56.33 km/h) | 37.02 mph (59.58 km/h) |
| 40 mph (64.37 km/h) | 42.31 mph (68.09 km/h) |
| 45 mph (72.42 km/h) | 47.6 mph (76.6 km/h) |
| 50 mph (80.47 km/h) | 52.88 mph (85.11 km/h) |
| 55 mph (88.51 km/h) | 58.17 mph (93.62 km/h) |
| 60 mph (96.56 km/h) | 63.46 mph (102.13 km/h) |
| 65 mph (104.61 km/h) | 68.75 mph (110.64 km/h) |
| 70 mph (112.65 km/h) | 74.04 mph (119.15 km/h) |
| 75 mph (120.7 km/h) | 79.33 mph (127.66 km/h) |
| 80 mph (128.75 km/h) | 84.61 mph (136.17 km/h) |
| 85 mph (136.79 km/h) | 89.9 mph (144.68 km/h) |
| 90 mph (144.84 km/h) | 95.19 mph (153.19 km/h) |
| 95 mph (152.89 km/h) | 100.48 mph (161.71 km/h) |
| 100 mph (160.93 km/h) | 105.77 mph (170.22 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 | 2621 | 2823 | 2948 | 3082 | 3178 | 3284 | 3409 | 3582 | 3755 | 3947 | 4100 | 4379 | 4686 | 4926 | 5080 | 5166 | 5483 | 5925 | 6885 |
Better Fuel Economy Factory Ratios Increased Power
