Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-18 | 275/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.44 (646.2) | 27.99 (711) | 2.55 (64.8) 10% |
| Width inches (mm) | 5.31 (135) | 10.83 (275) | 5.51 (140) 103.7% |
| Circum. inches (mm) | 79.93 (2030.1) | 87.94 (2233.67) | 8.01 (203.58) 10% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 6.5 (165) | 2.78 (70.5) 74.6% |
| Revolutions per mile (km) | 792.74 (492.59) | 720.49 (447.69) | -72.25 (-44.89) -9.1% |
275/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.01 mph (35.41 km/h) |
| 25 mph (40.23 km/h) | 27.51 mph (44.27 km/h) |
| 30 mph (48.28 km/h) | 33.01 mph (53.12 km/h) |
| 35 mph (56.33 km/h) | 38.51 mph (61.98 km/h) |
| 40 mph (64.37 km/h) | 44.01 mph (70.83 km/h) |
| 45 mph (72.42 km/h) | 49.51 mph (79.68 km/h) |
| 50 mph (80.47 km/h) | 55.01 mph (88.54 km/h) |
| 55 mph (88.51 km/h) | 60.52 mph (97.39 km/h) |
| 60 mph (96.56 km/h) | 66.02 mph (106.24 km/h) |
| 65 mph (104.61 km/h) | 71.52 mph (115.1 km/h) |
| 70 mph (112.65 km/h) | 77.02 mph (123.95 km/h) |
| 75 mph (120.7 km/h) | 82.52 mph (132.8 km/h) |
| 80 mph (128.75 km/h) | 88.02 mph (141.66 km/h) |
| 85 mph (136.79 km/h) | 93.52 mph (150.51 km/h) |
| 90 mph (144.84 km/h) | 99.03 mph (159.37 km/h) |
| 95 mph (152.89 km/h) | 104.53 mph (168.22 km/h) |
| 100 mph (160.93 km/h) | 110.03 mph (177.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1834 | 2130 | 2294 | 2395 | 2505 | 2583 | 2668 | 2770 | 2910 | 3051 | 3207 | 3332 | 3558 | 3807 | 4003 | 4127 | 4198 | 4455 | 4814 | 5594 |
Better Fuel Economy Factory Ratios Increased Power
