Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 195/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 27.28 (693) | -0.7 (-17.9) -2.5% |
| Width inches (mm) | 13.98 (355) | 7.68 (195) | -6.3 (-160) -45.1% |
| Circum. inches (mm) | 87.93 (2233.36) | 85.71 (2177.12) | -2.21 (-56.23) -2.5% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 6.14 (156) | 2.65 (67.25) 75.8% |
| Revolutions per mile (km) | 720.59 (447.76) | 739.21 (459.32) | 18.61 (11.57) 2.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.5 mph (31.38 km/h) |
| 25 mph (40.23 km/h) | 24.37 mph (39.22 km/h) |
| 30 mph (48.28 km/h) | 29.24 mph (47.06 km/h) |
| 35 mph (56.33 km/h) | 34.12 mph (54.91 km/h) |
| 40 mph (64.37 km/h) | 38.99 mph (62.75 km/h) |
| 45 mph (72.42 km/h) | 43.87 mph (70.6 km/h) |
| 50 mph (80.47 km/h) | 48.74 mph (78.44 km/h) |
| 55 mph (88.51 km/h) | 53.62 mph (86.29 km/h) |
| 60 mph (96.56 km/h) | 58.49 mph (94.13 km/h) |
| 65 mph (104.61 km/h) | 63.36 mph (101.97 km/h) |
| 70 mph (112.65 km/h) | 68.24 mph (109.82 km/h) |
| 75 mph (120.7 km/h) | 73.11 mph (117.66 km/h) |
| 80 mph (128.75 km/h) | 77.99 mph (125.51 km/h) |
| 85 mph (136.79 km/h) | 82.86 mph (133.35 km/h) |
| 90 mph (144.84 km/h) | 87.73 mph (141.19 km/h) |
| 95 mph (152.89 km/h) | 92.61 mph (149.04 km/h) |
| 100 mph (160.93 km/h) | 97.48 mph (156.88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1881 | 2185 | 2353 | 2457 | 2570 | 2650 | 2738 | 2842 | 2986 | 3130 | 3290 | 3418 | 3650 | 3906 | 4106 | 4235 | 4307 | 4571 | 4939 | 5739 |
Better Fuel Economy Factory Ratios Increased Power
