Does 18 or 19 inch wheels change the geometry of P3D+ with 20 inch wheels

[AnesDragon]

Does anybody know if there are any geometry changes happening if 18 or 19-inch aftermarket wheels are added to the P3D+ model with a slightly different setup with performance brakes and the suspension linkage needed for the 20-inch wheels provided by Tesla? I am just asking this question out of ignorance just to make sure there aren't any issues downsizing for the winter setup. There are plenty of people doing this but no mention of this where there is a mention on the forum about the slightly different rear setup in the suspension linkage in the rear that is performed by Tesla as 20-inch performance wheel package. Am I worried about nothing?

 

[PatP]

Great question. I was wondering the same...

 

[usofrob]

Seems like it's mostly just the offset that changes things. You can look up scrub radius. And here's a really cool tool:
Rim & Tire Size Calculator. Custom Offsets

 

[AnesDragon]

To clarify, I am just asking if there is any harm downsizing to 18 or 19-inch wheels with the performance model with performance upgraded wheels and rear suspension setup.?

 

[evp]

I guess that's a question that I should have asked before I ordered the TSportLine 18" wheels and winter tires. At least they confirmed that the extra groove has been machined out, there's enough room for the larger brakes, and the TPMS sensors are installed.

 

[TSportline]

Overall Diameter for Tesla Factory Tires:

Michelin Primacy MXM4 235/45-18": 26.3"
Continental ProContact RX 235/40-19": 26.4"
Michelin Pilot Sport 4S 235/35-20": 26.5"

Source: Tire Rack

 

[mcbarnet007]

You won't have any problem if you stick with 8.5 inch width and +35 offset for your 18 or 19 inch rim. It's the tire choice that affect the overall size but they barely make any difference if you stick to oem sizes.

 

[AnesDragon]

This is what you get when you have the 20" wheels from Tesla:

• 4 x 20X8.5J Sport wheels
• 4 x 235/35/20 – Michelin Pilot Sport 4S tires
• 4 x tire pressure sensors
• 4 x Tesla logo Sport wheel center caps
• 2 x rear upper fore links

This package includes rear suspension adjustments to optimize ride quality, and is only available for installation after delivery.

So the P3D+ has this rear upper fore links as well with the bigger brake. So does this rear upper fore links cause any different behavior when mounted to 18 or 19-inch wheels? Anyone knows or again is this trivial issue not worth pondering about?

 

[mcbarnet007]

it is trivial and don't worry, they may have adjusted the camber a little bit to make wear better.