Tesla Motors Club
If you're interested in doing this, it's not going to be easy folks. The 19" and 20" Model Y wheels are 9.5 wide and ET45. You could put 265-wide rubber on these, and have the same diameter, but those offsets are going to put the inner wheel and tire super close to the front knuckle. I wouldn't plan on it. You'll need spacers (and spacers suck).
The easiest might be the 21x9.5 wheels, but it'll be close. They won't work unless you run rubberband 30 ratio tires and go to a larger diameter. It might be possible to use 255/30R21 tires on the 21x9.5 front Uberturbines without spacers and without rubbing the knuckle. Four tires, including P Zeros and PS4S, are available in those sizes from Tirerack.com. Those 255/30R21 tires are 1.9% larger diameter than the 235/35R20 OE tires and 0.7% larger than the Track Pack 245/35R20 tires. Who's going to be the first to try?
Pg 194 from the Model Y Owners Manual:
My Photoshopped version with 21" Uberturbines. If you try this, I hope your roads are smooth!
The easiest might be the 21x9.5 wheels, but it'll be close. They won't work unless you run rubberband 30 ratio tires and go to a larger diameter. It might be possible to use 255/30R21 tires on the 21x9.5 front Uberturbines without spacers and without rubbing the knuckle. Four tires, including P Zeros and PS4S, are available in those sizes from Tirerack.com. Those 255/30R21 tires are 1.9% larger diameter than the 235/35R20 OE tires and 0.7% larger than the Track Pack 245/35R20 tires. Who's going to be the first to try?
Pg 194 from the Model Y Owners Manual:
My Photoshopped version with 21" Uberturbines. If you try this, I hope your roads are smooth!