245/45R19 vs 235/55R19: Gas Mileage & Performance Comparison
* Below is a comparison table. Assuming 2 tires of the same manufacturer, material and tested on the same road conditions.
| 235/55R19 | 245/45R19 | |
| Wet/Snowy Roads | Reduced Traction | Better Traction |
| Rough Terrain | Smoother Ride | Reduced Stability |
| Handling/Steering | Less Responsive | Better |
| Gas Mileage | Better | Good |
| Road Noise | Quieter | Quiet |
| Cost | More Expensive | Less Expensive |
Can You Replace The 235/55R19 With The 245/45R19?
No, both tires have the same rim diameter, but the 245/45R19 has a smaller overall diameter than the 235/55R19 which is -5.4% (1.5-inch).
When you want to replace a different tire size, as a rule, for the rim diameter, you will need to be sure that your tires and rims are an exact match, e.g. a 235/55R19 tire will only fit on a 19″ diameter rim.
You Can check our tools and charts below to find your size:
