Wider tires to prevent curb rash?

Joined
Apr 16, 2018
Messages
17
Location
Georgia
Tesla Owner
No
Country
Country
#1
People have been reporting curb rash with both the 18 and 19's. Standard 235/45/18 is 26.3in diameter and 790 revolution per mile, 235/40/29 is 26.4in diameter and 787 rpm.

Looking at different tire sizes a 255/40/18 or 255/35/19 are fairly close at 26in diameter and 801 rpm.

255's would fit on the 8.5 inch rims. The concern would be that the tires rub inside the wheel wells at maximum turn or contact the coils/springs.

As for speedometer accuracy concerns, the slightly smaller wheel would result in the actual speed being lower than what the speedometer shows. In my case that's a good thing.

Is anyone using 255's? How do they fit? How much impact on range are you seeing?
 

scaots

Tesla Pilot, Owner, and Shareholder
Joined
Sep 12, 2017
Messages
372
Location
PA
Tesla Owner
Model 3
Country
Country
#2
For the 18s they are good tires because they do fairly well at minimizing rolling resistance and may contribute to efficiency.
That said, I have Goodyear Eagles on another vehicle and they have a very good edge that sticks out near the rim to protect it. Here is 18 size and in person my install they stick out much more than appears in the photo. Though depends on the width some also.
http://www.mrtire.com/tire/Goodyear/Eagle-Sport-All-Season/235-45R18?sku=109084366