What does 275 mean on a tire?
The numbers in the tire size refer to its width, aspect ratio, and wheel diameter. “275/35R19” means the tire is 275 mm wide, has an aspect ratio (that is, the width divided by the height) of 35%, and fits on a 19″ wheel.
Are 255 and 265 tires interchangeable?
In principle yes, if a rim came with a 265 wide tire, a 255 will fit to.
Is 275 wider than 255?
The 255 tires have a similar rim width to the 275. Whilst the 275 tires are bigger the 255 tires are more suitable for the smaller cars. Since these are smaller tires, they will hold cars that are weighed over 800 kg. The 255 tires will not be as sturdy as the 275, but this also means the 255 tires will go faster.