Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/80-15 | 135/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.39 (645) | 19.25 (489) | -6.14 (-156) -24.2% |
| Width inches (mm) | 6.5 (165) | 5.31 (135) | -1.18 (-30) -18.2% |
| Circum. inches (mm) | 79.78 (2026.33) | 60.48 (1536.24) | -19.29 (-490.09) -24.2% |
| Sidewall Height inches (mm) | 5.2 (132) | 2.13 (54) | -3.07 (-78) -59.1% |
| Revolutions per mile (km) | 794.22 (493.5) | 1047.59 (650.94) | 253.37 (157.44) 31.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 15.16 mph (24.4 km/h) |
| 25 mph (40.23 km/h) | 18.95 mph (30.5 km/h) |
| 30 mph (48.28 km/h) | 22.74 mph (36.6 km/h) |
| 35 mph (56.33 km/h) | 26.53 mph (42.7 km/h) |
| 40 mph (64.37 km/h) | 30.33 mph (48.8 km/h) |
| 45 mph (72.42 km/h) | 34.12 mph (54.9 km/h) |
| 50 mph (80.47 km/h) | 37.91 mph (61.01 km/h) |
| 55 mph (88.51 km/h) | 41.7 mph (67.11 km/h) |
| 60 mph (96.56 km/h) | 45.49 mph (73.21 km/h) |
| 65 mph (104.61 km/h) | 49.28 mph (79.31 km/h) |
| 70 mph (112.65 km/h) | 53.07 mph (85.41 km/h) |
| 75 mph (120.7 km/h) | 56.86 mph (91.51 km/h) |
| 80 mph (128.75 km/h) | 60.65 mph (97.61 km/h) |
| 85 mph (136.79 km/h) | 64.44 mph (103.71 km/h) |
| 90 mph (144.84 km/h) | 68.23 mph (109.81 km/h) |
| 95 mph (152.89 km/h) | 72.02 mph (115.91 km/h) |
| 100 mph (160.93 km/h) | 75.81 mph (122.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
