Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 26/12-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 26.05 (661.6) | 1.48 (37.6) 6% |
| Width inches (mm) | 5.31 (135) | 12.01 (305) | 6.69 (170) 125.9% |
| Circum. inches (mm) | 77.18 (1960.35) | 81.83 (2078.48) | 4.65 (118.12) 6% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 5.52 (140.3) | 0.74 (18.8) 15.5% |
| Revolutions per mile (km) | 820.95 (510.11) | 774.29 (481.12) | -46.66 (-28.99) -5.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.21 mph (34.13 km/h) |
| 25 mph (40.23 km/h) | 26.51 mph (42.66 km/h) |
| 30 mph (48.28 km/h) | 31.81 mph (51.19 km/h) |
| 35 mph (56.33 km/h) | 37.11 mph (59.72 km/h) |
| 40 mph (64.37 km/h) | 42.41 mph (68.25 km/h) |
| 45 mph (72.42 km/h) | 47.71 mph (76.78 km/h) |
| 50 mph (80.47 km/h) | 53.01 mph (85.32 km/h) |
| 55 mph (88.51 km/h) | 58.31 mph (93.85 km/h) |
| 60 mph (96.56 km/h) | 63.62 mph (102.38 km/h) |
| 65 mph (104.61 km/h) | 68.92 mph (110.91 km/h) |
| 70 mph (112.65 km/h) | 74.22 mph (119.44 km/h) |
| 75 mph (120.7 km/h) | 79.52 mph (127.97 km/h) |
| 80 mph (128.75 km/h) | 84.82 mph (136.51 km/h) |
| 85 mph (136.79 km/h) | 90.12 mph (145.04 km/h) |
| 90 mph (144.84 km/h) | 95.42 mph (153.57 km/h) |
| 95 mph (152.89 km/h) | 100.72 mph (162.1 km/h) |
| 100 mph (160.93 km/h) | 106.03 mph (170.63 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1970 | 2289 | 2465 | 2574 | 2692 | 2775 | 2868 | 2977 | 3128 | 3278 | 3446 | 3580 | 3823 | 4092 | 4301 | 4436 | 4511 | 4788 | 5173 | 6012 |
Better Fuel Economy Factory Ratios Increased Power
