Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/80-16 | 215/75-17.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.8 (782.4) | 30.2 (767) | -0.61 (-15.4) -2% |
| Width inches (mm) | 9.25 (235) | 8.46 (215) | -0.79 (-20) -8.5% |
| Circum. inches (mm) | 96.77 (2457.98) | 94.87 (2409.6) | -1.9 (-48.38) -2% |
| Sidewall Height inches (mm) | 7.4 (188) | 6.35 (161.25) | -1.05 (-26.75) -14.2% |
| Revolutions per mile (km) | 654.74 (406.84) | 667.89 (415.01) | 13.15 (8.17) 2% |
215/75-17.5 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.61 mph (31.55 km/h) |
| 25 mph (40.23 km/h) | 24.51 mph (39.44 km/h) |
| 30 mph (48.28 km/h) | 29.41 mph (47.33 km/h) |
| 35 mph (56.33 km/h) | 34.31 mph (55.22 km/h) |
| 40 mph (64.37 km/h) | 39.21 mph (63.11 km/h) |
| 45 mph (72.42 km/h) | 44.11 mph (71 km/h) |
| 50 mph (80.47 km/h) | 49.02 mph (78.88 km/h) |
| 55 mph (88.51 km/h) | 53.92 mph (86.77 km/h) |
| 60 mph (96.56 km/h) | 58.82 mph (94.66 km/h) |
| 65 mph (104.61 km/h) | 63.72 mph (102.55 km/h) |
| 70 mph (112.65 km/h) | 68.62 mph (110.44 km/h) |
| 75 mph (120.7 km/h) | 73.52 mph (118.33 km/h) |
| 80 mph (128.75 km/h) | 78.43 mph (126.21 km/h) |
| 85 mph (136.79 km/h) | 83.33 mph (134.1 km/h) |
| 90 mph (144.84 km/h) | 88.23 mph (141.99 km/h) |
| 95 mph (152.89 km/h) | 93.13 mph (149.88 km/h) |
| 100 mph (160.93 km/h) | 98.03 mph (157.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1700 | 1974 | 2126 | 2220 | 2322 | 2394 | 2474 | 2568 | 2698 | 2828 | 2973 | 3088 | 3298 | 3529 | 3710 | 3826 | 3891 | 4130 | 4462 | 5186 |
Better Fuel Economy Factory Ratios Increased Power
