Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
  • Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
  • We are looking for another podcast participant who can act as a lead co-host to join the TMC Podcast. If you are interested in participating please see this thread.

Model Y performance tires

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

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.