Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 135/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 24.04 (610.5) | -0.53 (-13.5) -2.2% |
| Width inches (mm) | 5.31 (135) | 5.31 (135) | 0 (0) 0% |
| Circum. inches (mm) | 77.18 (1960.35) | 75.51 (1917.94) | -1.67 (-42.41) -2.2% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 4.52 (114.75) | -0.27 (-6.75) -5.6% |
| Revolutions per mile (km) | 820.95 (510.11) | 839.1 (521.39) | 18.15 (11.28) 2.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.57 mph (31.49 km/h) |
| 25 mph (40.23 km/h) | 24.46 mph (39.36 km/h) |
| 30 mph (48.28 km/h) | 29.35 mph (47.24 km/h) |
| 35 mph (56.33 km/h) | 34.24 mph (55.11 km/h) |
| 40 mph (64.37 km/h) | 39.13 mph (62.98 km/h) |
| 45 mph (72.42 km/h) | 44.03 mph (70.85 km/h) |
| 50 mph (80.47 km/h) | 48.92 mph (78.73 km/h) |
| 55 mph (88.51 km/h) | 53.81 mph (86.6 km/h) |
| 60 mph (96.56 km/h) | 58.7 mph (94.47 km/h) |
| 65 mph (104.61 km/h) | 63.59 mph (102.34 km/h) |
| 70 mph (112.65 km/h) | 68.49 mph (110.22 km/h) |
| 75 mph (120.7 km/h) | 73.38 mph (118.09 km/h) |
| 80 mph (128.75 km/h) | 78.27 mph (125.96 km/h) |
| 85 mph (136.79 km/h) | 83.16 mph (133.84 km/h) |
| 90 mph (144.84 km/h) | 88.05 mph (141.71 km/h) |
| 95 mph (152.89 km/h) | 92.94 mph (149.58 km/h) |
| 100 mph (160.93 km/h) | 97.84 mph (157.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2135 | 2481 | 2671 | 2790 | 2917 | 3008 | 3108 | 3226 | 3389 | 3553 | 3735 | 3880 | 4143 | 4434 | 4661 | 4807 | 4889 | 5188 | 5606 | 6515 |
Better Fuel Economy Factory Ratios Increased Power
