Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/70-15 | 235/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.34 (542) | 26.1 (663) | 4.76 (121) 22.3% |
| Width inches (mm) | 4.53 (115) | 9.25 (235) | 4.72 (120) 104.3% |
| Circum. inches (mm) | 67.04 (1702.74) | 82 (2082.88) | 14.97 (380.13) 22.3% |
| Sidewall Height inches (mm) | 3.17 (80.5) | 5.55 (141) | 2.38 (60.5) 75.2% |
| Revolutions per mile (km) | 945.15 (587.29) | 772.65 (480.1) | -172.49 (-107.18) -18.3% |
235/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.46 mph (39.37 km/h) |
| 25 mph (40.23 km/h) | 30.58 mph (49.22 km/h) |
| 30 mph (48.28 km/h) | 36.7 mph (59.06 km/h) |
| 35 mph (56.33 km/h) | 42.81 mph (68.9 km/h) |
| 40 mph (64.37 km/h) | 48.93 mph (78.75 km/h) |
| 45 mph (72.42 km/h) | 55.05 mph (88.59 km/h) |
| 50 mph (80.47 km/h) | 61.16 mph (98.43 km/h) |
| 55 mph (88.51 km/h) | 67.28 mph (108.27 km/h) |
| 60 mph (96.56 km/h) | 73.39 mph (118.12 km/h) |
| 65 mph (104.61 km/h) | 79.51 mph (127.96 km/h) |
| 70 mph (112.65 km/h) | 85.63 mph (137.8 km/h) |
| 75 mph (120.7 km/h) | 91.74 mph (147.65 km/h) |
| 80 mph (128.75 km/h) | 97.86 mph (157.49 km/h) |
| 85 mph (136.79 km/h) | 103.98 mph (167.33 km/h) |
| 90 mph (144.84 km/h) | 110.09 mph (177.18 km/h) |
| 95 mph (152.89 km/h) | 116.21 mph (187.02 km/h) |
| 100 mph (160.93 km/h) | 122.32 mph (196.86 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1966 | 2284 | 2460 | 2569 | 2686 | 2769 | 2862 | 2970 | 3121 | 3272 | 3439 | 3573 | 3815 | 4083 | 4292 | 4426 | 4501 | 4778 | 5162 | 5999 |
Better Fuel Economy Factory Ratios Increased Power
