Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/80-15 | 29/10.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.54 (725) | 29.09 (738.78) | 0.54 (13.78) 1.9% |
| Width inches (mm) | 8.46 (215) | 10.51 (267) | 2.05 (52) 24.2% |
| Circum. inches (mm) | 89.67 (2277.65) | 91.38 (2320.95) | 1.7 (43.29) 1.9% |
| Sidewall Height inches (mm) | 6.77 (172) | 7.04 (178.89) | 0.27 (6.89) 4% |
| Revolutions per mile (km) | 706.58 (439.05) | 693.4 (430.86) | -13.18 (-8.19) -1.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.38 mph (32.8 km/h) |
| 25 mph (40.23 km/h) | 25.48 mph (41 km/h) |
| 30 mph (48.28 km/h) | 30.57 mph (49.2 km/h) |
| 35 mph (56.33 km/h) | 35.67 mph (57.4 km/h) |
| 40 mph (64.37 km/h) | 40.76 mph (65.6 km/h) |
| 45 mph (72.42 km/h) | 45.86 mph (73.8 km/h) |
| 50 mph (80.47 km/h) | 50.95 mph (82 km/h) |
| 55 mph (88.51 km/h) | 56.05 mph (90.2 km/h) |
| 60 mph (96.56 km/h) | 61.14 mph (98.4 km/h) |
| 65 mph (104.61 km/h) | 66.24 mph (106.6 km/h) |
| 70 mph (112.65 km/h) | 71.33 mph (114.8 km/h) |
| 75 mph (120.7 km/h) | 76.43 mph (123 km/h) |
| 80 mph (128.75 km/h) | 81.52 mph (131.19 km/h) |
| 85 mph (136.79 km/h) | 86.62 mph (139.39 km/h) |
| 90 mph (144.84 km/h) | 91.71 mph (147.59 km/h) |
| 95 mph (152.89 km/h) | 96.81 mph (155.79 km/h) |
| 100 mph (160.93 km/h) | 101.9 mph (163.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1765 | 2050 | 2208 | 2305 | 2410 | 2485 | 2568 | 2666 | 2801 | 2936 | 3086 | 3206 | 3424 | 3664 | 3852 | 3972 | 4040 | 4288 | 4633 | 5384 |
Better Fuel Economy Factory Ratios Increased Power
