Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/75-17 | 345/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.7 (754.3) | 36.02 (914.8) | 6.32 (160.5) 21.3% |
| Width inches (mm) | 8.46 (215) | 13.58 (345) | 5.12 (130) 60.5% |
| Circum. inches (mm) | 93.3 (2369.7) | 113.15 (2873.93) | 19.85 (504.23) 21.3% |
| Sidewall Height inches (mm) | 6.35 (161.25) | 9.51 (241.5) | 3.16 (80.25) 49.8% |
| Revolutions per mile (km) | 679.13 (421.99) | 559.98 (347.96) | -119.15 (-74.04) -17.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.26 mph (39.04 km/h) |
| 25 mph (40.23 km/h) | 30.32 mph (48.79 km/h) |
| 30 mph (48.28 km/h) | 36.38 mph (58.55 km/h) |
| 35 mph (56.33 km/h) | 42.45 mph (68.31 km/h) |
| 40 mph (64.37 km/h) | 48.51 mph (78.07 km/h) |
| 45 mph (72.42 km/h) | 54.58 mph (87.83 km/h) |
| 50 mph (80.47 km/h) | 60.64 mph (97.59 km/h) |
| 55 mph (88.51 km/h) | 66.7 mph (107.35 km/h) |
| 60 mph (96.56 km/h) | 72.77 mph (117.11 km/h) |
| 65 mph (104.61 km/h) | 78.83 mph (126.87 km/h) |
| 70 mph (112.65 km/h) | 84.89 mph (136.62 km/h) |
| 75 mph (120.7 km/h) | 90.96 mph (146.38 km/h) |
| 80 mph (128.75 km/h) | 97.02 mph (156.14 km/h) |
| 85 mph (136.79 km/h) | 103.09 mph (165.9 km/h) |
| 90 mph (144.84 km/h) | 109.15 mph (175.66 km/h) |
| 95 mph (152.89 km/h) | 115.21 mph (185.42 km/h) |
| 100 mph (160.93 km/h) | 121.28 mph (195.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1425 | 1655 | 1783 | 1862 | 1947 | 2007 | 2074 | 2153 | 2262 | 2371 | 2492 | 2589 | 2765 | 2959 | 3111 | 3208 | 3262 | 3463 | 3741 | 4348 |
Better Fuel Economy Factory Ratios Increased Power
