265/50R20 vs 255/55R20: Gas Mileage & Performance Comparison
* Below is a comparison table. Assuming 2 tires of the same manufacturer, material and tested on the same road conditions.
| 255/55R20 | 265/50R20 | |
| 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 255/55R20 With The 265/50R20?
Yes, both tires have the same rim diameter, and the 265/50R20 has a smaller overall diameter than the 255/55R20 which is only 2.01% (0.61-inch), it is the allowable margin (±3%).
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 255/55R20 tire will only fit on a 20″ diameter rim.
You Can check our tools and charts below to find your size:
