Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 140/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 22.17 (563) | -2.4 (-61) -9.8% |
| Width inches (mm) | 5.31 (135) | 5.51 (140) | 0.2 (5) 3.7% |
| Circum. inches (mm) | 77.18 (1960.35) | 69.63 (1768.72) | -7.54 (-191.64) -9.8% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 3.58 (91) | -1.2 (-30.5) -25.1% |
| Revolutions per mile (km) | 820.95 (510.11) | 909.89 (565.38) | 88.95 (55.27) 10.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.04 mph (29.04 km/h) |
| 25 mph (40.23 km/h) | 22.56 mph (36.3 km/h) |
| 30 mph (48.28 km/h) | 27.07 mph (43.56 km/h) |
| 35 mph (56.33 km/h) | 31.58 mph (50.82 km/h) |
| 40 mph (64.37 km/h) | 36.09 mph (58.08 km/h) |
| 45 mph (72.42 km/h) | 40.6 mph (65.34 km/h) |
| 50 mph (80.47 km/h) | 45.11 mph (72.6 km/h) |
| 55 mph (88.51 km/h) | 49.62 mph (79.86 km/h) |
| 60 mph (96.56 km/h) | 54.13 mph (87.12 km/h) |
| 65 mph (104.61 km/h) | 58.65 mph (94.38 km/h) |
| 70 mph (112.65 km/h) | 63.16 mph (101.64 km/h) |
| 75 mph (120.7 km/h) | 67.67 mph (108.9 km/h) |
| 80 mph (128.75 km/h) | 72.18 mph (116.16 km/h) |
| 85 mph (136.79 km/h) | 76.69 mph (123.42 km/h) |
| 90 mph (144.84 km/h) | 81.2 mph (130.68 km/h) |
| 95 mph (152.89 km/h) | 85.71 mph (137.94 km/h) |
| 100 mph (160.93 km/h) | 90.22 mph (145.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2316 | 2690 | 2897 | 3025 | 3163 | 3261 | 3370 | 3498 | 3675 | 3853 | 4050 | 4207 | 4493 | 4808 | 5055 | 5212 | 5301 | 5626 | 6079 | 7065 |
Better Fuel Economy Factory Ratios Increased Power
