Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/35-21 | 295/30-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.58 (725.9) | 27.97 (710.4) | -0.61 (-15.5) -2.1% |
| Width inches (mm) | 10.83 (275) | 11.61 (295) | 0.79 (20) 7.3% |
| Circum. inches (mm) | 89.78 (2280.48) | 87.87 (2231.79) | -1.92 (-48.69) -2.1% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 3.48 (88.5) | -0.31 (-7.75) -8.1% |
| Revolutions per mile (km) | 705.7 (438.5) | 721.1 (448.07) | 15.4 (9.57) 2.2% |
295/30-21 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.57 mph (31.5 km/h) |
| 25 mph (40.23 km/h) | 24.47 mph (39.37 km/h) |
| 30 mph (48.28 km/h) | 29.36 mph (47.25 km/h) |
| 35 mph (56.33 km/h) | 34.25 mph (55.12 km/h) |
| 40 mph (64.37 km/h) | 39.15 mph (63 km/h) |
| 45 mph (72.42 km/h) | 44.04 mph (70.87 km/h) |
| 50 mph (80.47 km/h) | 48.93 mph (78.75 km/h) |
| 55 mph (88.51 km/h) | 53.83 mph (86.62 km/h) |
| 60 mph (96.56 km/h) | 58.72 mph (94.5 km/h) |
| 65 mph (104.61 km/h) | 63.61 mph (102.37 km/h) |
| 70 mph (112.65 km/h) | 68.51 mph (110.25 km/h) |
| 75 mph (120.7 km/h) | 73.4 mph (118.12 km/h) |
| 80 mph (128.75 km/h) | 78.29 mph (126 km/h) |
| 85 mph (136.79 km/h) | 83.19 mph (133.87 km/h) |
| 90 mph (144.84 km/h) | 88.08 mph (141.75 km/h) |
| 95 mph (152.89 km/h) | 92.97 mph (149.62 km/h) |
| 100 mph (160.93 km/h) | 97.86 mph (157.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1835 | 2132 | 2296 | 2397 | 2507 | 2585 | 2671 | 2772 | 2913 | 3053 | 3209 | 3334 | 3561 | 3811 | 4006 | 4131 | 4201 | 4459 | 4818 | 5599 |
Better Fuel Economy Factory Ratios Increased Power
