Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Model Y performance tires

This site may earn commission on affiliate links.
I want to increase the aspect ratio on my model y performance tires from 35 to 40 for a softer ride. Can You use a 255/ 275 40 21. That should fit on the 21” ubertine rims - right? Keep the other dimensions the same just increase the aspect ratio. Does that cause any issues.
 
It'll fit, but make the overall diameter about an inch bigger.

It can affect performance as the drive ratio. But the most noticeable effect will be on the speedometer (and over time, the odometer too). Its a 3.5% increase in diameter/speed, meaning that, when it says you're going 60, you're more likely going over 62.
 
Upvote 0
Upvote 0