26″ too 27″ tire replacement? Or stick with stock size height?

I’m looking to change out my stock Carlisle 26x8x14 front & 26x10x14 rear’s, to some Sedona rip-saw R/T 26x9x14 front & 26x11x14 and wanting to know if I should stick with the 26" or go up to the 27" they offer (other dimensions are the same)!

I am already going 1" wider for front and rear as that’s the closest they have to the stock Polaris 850xp sizes. Just don’t want any sidewall issues so I’m thinking staying with 26" but would like some opinions. thanks you.