Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-15 | 27.5/12-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.51 (622.5) | 27.49 (698.2) | 2.98 (75.7) 12.2% |
| Width inches (mm) | 13.58 (345) | 12.01 (305) | -1.57 (-40) -11.6% |
| Circum. inches (mm) | 76.99 (1955.64) | 86.36 (2193.46) | 9.36 (237.82) 12.2% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 6.24 (158.6) | 1.49 (37.85) 31.3% |
| Revolutions per mile (km) | 822.92 (511.34) | 733.7 (455.9) | -89.22 (-55.44) -10.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.43 mph (36.1 km/h) |
| 25 mph (40.23 km/h) | 28.04 mph (45.13 km/h) |
| 30 mph (48.28 km/h) | 33.65 mph (54.15 km/h) |
| 35 mph (56.33 km/h) | 39.26 mph (63.18 km/h) |
| 40 mph (64.37 km/h) | 44.86 mph (72.2 km/h) |
| 45 mph (72.42 km/h) | 50.47 mph (81.23 km/h) |
| 50 mph (80.47 km/h) | 56.08 mph (90.25 km/h) |
| 55 mph (88.51 km/h) | 61.69 mph (99.28 km/h) |
| 60 mph (96.56 km/h) | 67.3 mph (108.3 km/h) |
| 65 mph (104.61 km/h) | 72.9 mph (117.33 km/h) |
| 70 mph (112.65 km/h) | 78.51 mph (126.35 km/h) |
| 75 mph (120.7 km/h) | 84.12 mph (135.38 km/h) |
| 80 mph (128.75 km/h) | 89.73 mph (144.4 km/h) |
| 85 mph (136.79 km/h) | 95.34 mph (153.43 km/h) |
| 90 mph (144.84 km/h) | 100.94 mph (162.45 km/h) |
| 95 mph (152.89 km/h) | 106.55 mph (171.48 km/h) |
| 100 mph (160.93 km/h) | 112.16 mph (180.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1867 | 2169 | 2336 | 2439 | 2550 | 2630 | 2717 | 2821 | 2964 | 3107 | 3265 | 3393 | 3623 | 3877 | 4076 | 4203 | 4275 | 4537 | 4902 | 5697 |
Better Fuel Economy Factory Ratios Increased Power
