They might fit but would probably throw off your speedometer.
If your 2018 Enclave has 255/55R20 tires on it now, I believe your wheel spec is 8Jx20 ET50. Your tires have the following spec.:What brand of tires are people putting on their cars?
My 2018 Enclave needs new tires. Currently it has the Continental CrossContact LX20
Factory Size: 255/55-20
The newer Continental model "LX25" is a better weather tire from what I see online. The problem is they do not come in that size.
If I were to change tire size to a 275/50-20 I can get the LX25 tires. One of my questions, has anyone installed this 275/50-20 larger size tire on their 2018-2023 Enclave? Do they fit without rubbing?
The other brand I'm looking at is the Cooper Endeavor Plus. Any opinion on this tire? wear- traction - noise, etc...