Is 255/40/18 a good street tire size?

[Jaxon c]

This is for my 2018 RWD LR.
It will be about 5 mm lower.
I want a bit more meat for better grip, and to protect the rims from kerbing.
Will the slight lowering offset the greater width in terms of Aero and its effect on range? I have a very long commute...

 

[Jaxon c]

P.S. on stock 18" wheels...

 

[Sendit1]

It is a definite maybe. The efficiency benefits of lowering will more likely offset the loss of efficiency of the slightly wider tire, right guys?
That I think it was German test showed what +7% efficiency by lowering..I find it hard to believe that a slightly wider tire would lose more efficiency than that.

 

[rayrevolver]

UPP claims 8.1% less drag with a 1.5" drop in ride height. To convert that to foreign, thats 38.1mm less ride height. I don't think 5mm lower is going to make a significant decrease to your drag count.

How much do the new tires weigh vs the old?

So many variable changes with this simple tire swap. Not to mention the rubber compound of the bigger tires vs your current.

What are your current tires? If they are the MXM4 tires, I would say you can get newer technology tires with better grip for sure, and possibly even better efficiency.

You could use Tirerack and look for AA Traction tires for our cars. Plus the few threads on TMC on the Hankook ION Evo, Pirelli Elect, Michelin Pilot Sport All Season 4, and Goodyear Electricdrive GT.

I have been obsessed with tires since a few months when I had some slides in the wet with MXM4s.

Are these three MXM4 tires the same (for Model 3 AWD)?

Hi all, I am looking for OEM tires to fit a 2018 Model 3, AWD. First one has AC designation, third one has T1 Tesla designation. They are all the 98W load rating. Are they all essentially the same tire? Thank you. https://www.americastire.com/buy-tires/michelin-primacy-mxm4-ac/p/89901...

teslamotorsclub.com

Review: Hankook iON evo AS vs Pirelli AS+ Elect vs Michelin PS 4S vs Michelin PS AS 4

I tested all these tires back to back on either a Tesla Model 3 or Y. I have both a Model 3 and a Model Y (wife’s). My goal was to have a great handling tire (makes me happy) that can handle the occasional snow, is quiet, and has good range. For context, I have the Michelin Pilot Sport 4S...

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Hankook new iON tire, an "EV" tire (not the same as Kinergy GT)

Now that we have 2.5 months & almost 5k miles on these tires I can report that there is a definite efficiency improvement over the Pirelli Cinturato P7 All Season Plus II that we had before. One of our trip meters is reset monthly & I have a spreadsheet where I've tracked our monthly mileage for...

teslamotorsclub.com

Goodyear ElectricDrive GT Tires 235/45R18

Folks, I decided to start a new thread on the Goodyear ElectricDrive GT Tires for a few reasons. First, seems like most of the threads are in the Model Y forum. Second, was hoping to gather more real-world "data" on these tires for the Model 3 but also provide my own information. After the...

teslamotorsclub.com

 

[Jaxon c]

What are your current tires? If they are the MXM4 tires, I would say you can get newer technology tires with better grip for sure, and possibly even better efficiency.

You could use Tirerack and look for AA Traction tires for our cars. Plus the few threads on TMC on the Hankook ION Evo, Pirelli Elect, Michelin Pilot Sport All Season 4, and Goodyear Electricdrive GT.

Thanks.
The car came with Goodyear Eagle Touring M/S tires.
I'm thinking of buying my favorite tire for my other non-performance car, the General GMAX RS.
They are ultra high perf 3-season tires. I live in northern CA and don't plan on driving the Tesla in the mountains in winter.

https://www.tirerack.com/tires/general-g-max-rs

I thought of finding something that has long life, are quiet and have good wet grip, but I decided to give up on long life. Good wet grip may save me from a crash on my long commute during the wet season.

 

[mpgxsvcd]

This is for my 2018 RWD LR.
It will be about 5 mm lower.
I want a bit more meat for better grip, and to protect the rims from kerbing.
Will the slight lowering offset the greater width in terms of Aero and its effect on range? I have a very long commute...

Going wider doesn’t automatically mean more grip. I would choose tire compound over just simply going wider with a budget tire.