Has anyone fitted 255/45/R20 tires on 20 inch wheels?

[RMK90]

I am considering buying winter rubber in 255/45/R20. Has anyone done this? Any issues other than ~3% speedometer inaccuracy? No rubbing?

255/40/R20 is stock size

But the 45 aspect ratio tires are more common and considerably cheaper. The extra 12mm of sidewall height should help with ride too.

Thanks!

 

[RMK90]

No rubbing issues after almost a week of driving. Fill out the wheel arches better, and the ride is way smoother.
There is less than a finger of clearance between the tire and front upper control arm, but they move together so it should not rub.

Speedometer is underreporting, slightly.

I am probably buying summer tires in this size next year too.

 

[smithrukami]

I am considering buying winter rubber in 255/45/R20. Has anyone done this? Any issues other than ~3% speedometer inaccuracy? No rubbing?

255/40/R20 is stock size

But the 45 aspect ratio tires are more common and considerably cheaper. The extra 12mm of sidewall height should help with ride too.

Thanks!

100% good idea. Much smoother ride and no performance decline.

 

[av_three]

This is an amazing, problem free setup

From zinkwheels.com
20-inch ENTERPRISE Fully-Forged Wheel for Tesla Model Y - Carbon Black

From tirerack.com
Continental EXTREMECONTACT DWS 06 PLUS - SIZE: 275/40ZR20

 

[smithrukami]

This is an amazing, problem free setup

From zinkwheels.com
20-inch ENTERPRISE Fully-Forged Wheel for Tesla Model Y - Carbon Black

From tirerack.com
Continental EXTREMECONTACT DWS 06 PLUS - SIZE: 275/40ZR20

If you’re ok with “after market” aesthetic which I’m not.

 

[Mike94531]

I just had 255/45-20’s yesterday on my ‘21 MY. Tires are Pirelli Scorpion Verde run flats.

So far I like them and while it could be a placebo effect I think the ride is better.

Mounted on the factory option 20 inch wheels.

 

[bobbyjae]

I just had 255/45-20’s yesterday on my ‘21 MY. Tires are Pirelli Scorpion Verde run flats.

So far I like them and while it could be a placebo effect I think the ride is better.

Mounted on the factory option 20 inch wheels.

Any impact on handling at higher speeds?

 

[Mike94531]

Any impact on handling at higher speeds?

Handling at higher speeds on the freeway seem about the same. I have yet to go for a blast out on the windy country roads near me with these new tires.

Had I opted for non-run flat tires I’m sure the ride would be even better. I may change from 42psi to 38psi and see if that helps.

 

[bpon89]

Think I'll have any issues going with this 255/45 on MPP lowered 0.5"? Which one would be more comfortable, a 255/45 or 275/40?

 

[Maxmir88]

I’m doing this with Michelin CrossClimate2 next week (unless Costco refuses the install because this size is not recommended by Tesla for Y).

 

[bpon89]

I’m doing this with Michelin CrossClimate2 next week (unless Costco refuses the install because this size is not recommended by Tesla for Y).

Crappp, just called my Costco told them that I ordered the 45 sidewall and they said they won't install it because it's over 3% and that's just too much. Increasing the width is safer.

I just ordered them from America's Tire (Discount Tire), just asked if I've done some independent research regarding these and I said yes and he said ok I'll get them ordered for ya, it'll be here in 2-3 days.

 

[Maxmir88]

Crappp, just called my Costco told them that I ordered the 45 sidewall and they said they won't install it because it's over 3% and that's just too much. Increasing the width is safer.

I just ordered them from America's Tire (Discount Tire), just asked if I've done some independent research regarding these and I said yes and he said ok I'll get them ordered for ya, it'll be here in 2-3 days.

Thanks for the heads up. I wounder if they could just mount tires on my new wheels and install the sensors. Maybe I can then just have another shop to mount them. Maybe ?

 

[bpon89]

Got the tires installed at America's Tire. MPP lowered 0.5" with the 255/45/20 Inductions - Michelin AS4's. I used to be able to stick my hand at the top of the wheel to adjust the coilovers, definitely can't do that now.

 

[Maxmir88]

Crappp, just called my Costco told them that I ordered the 45 sidewall and they said they won't install it because it's over 3% and that's just too much. Increasing the width is safer.

I just ordered them from America's Tire (Discount Tire), just asked if I've done some independent research regarding these and I said yes and he said ok I'll get them ordered for ya, it'll be here in 2-3 days.

Michelin CrossClimate2 installed. Looks great. Haven’t driven long enough to notice any difference, but it’s a good thing - since I went up in wheel size and changed
offset for better visuals and protection. My wheels are 20x9 with 35 offset.

 

[Maxmir88]

 

[bpon89]

View attachment 918246

Wow those wheels are tripping me out....what are they?

 

[Maxmir88]

Hahaha; Thanks. Those are custom ones. Forged. With floating cups