Best size tire to fit 18×8.5?

[Spice_1]

Hey guys

I have a LR and have some te37 rims coming from Japan, 2 of the rims are 18x8.5 I really want pilot sports 4s tires but where I live I can't get size 235/40/r18 in them, what's the next best size I should go?

Thanks

 

[The Other Dan]

245/40

Hey guys

I have a LR and have some te37 rims coming from Japan, 2 of the rims are 18x8.5 I really want pilot sports 4s tires but where I live I can't get size 235/40/r18 in them, what's the next best size I should go?

Thanks

 

[tm1v2]

@Spice_1 Go with either 245/45R18 or 235/45R18. I prefer 245 for 8.5" wide wheels, I'm running 245/45R18 on 18x8.5" wheels right now on my 2021 M3P. Stock Model 3 18" size is 235/45R18 on 18x8.5" though and that's fine too.

Basically going 245 instead of 235 gives you a bit of extra width and sidewall and diameter, all good things for this car in my opinion. It still fits perfect and is a recommended size for 8.5" wheel width. Just for reference, my other Tesla came with 245 on 8.5" wide wheels, and so did my last ICE car.

245/40

@The Other Dan 245/40R18 or 235/40R18 would be very small diameter for a Model 3, don't go that small unless you have some very specific need/reason to.

 

[804son]

I'm currently running the 245/40R18 on my LRAWD, It's only a 2.5% difference in diameter. Runs just fine. However I would not go 235/40R18, I believe that would be way too small.

 

[ay221]

https://www.tiresandco.ca/tire-equivalence-advice.html

 

[ay221]

Here's a good article

How to PROPERLY select and size TIRES for PERFORMANCE - Page 3 of 5 - MotoIQ

….Okay, now with that education: “What are the constraints?” Constraints could be as simple as the size of your current wheels and specific outer diameter needed to maintain the accuracy…

motoiq.com

 

[mpgxsvcd]

@Spice_1 Go with either 245/45R18 or 235/35R18.

Isn’t 235/35/18 a REALLY small outer diameter? I could only find one tire in that size and it has a 24.4” outer diameter. Stock for 18s is something like 26.3”.

Did you mean some other size? 235/35/18 sounds like a bad idea. 2” smaller diameter would really change a lot for the car.

 

[tm1v2]

Isn’t 235/35/18 a REALLY small outer diameter? I could only find one tire in that size and it has a 24.4” outer diameter. Stock for 18s is something like 26.3”.

Did you mean some other size? 235/35/18 sounds like a bad idea. 2” smaller diameter would really change a lot for the car.

@mpgxsvcd Yes typo, sorry! Thanks for catching that. I'll ask a mod to fix it if possible.

@Spice_1 I meant "245/45R18 or 235/45R18" (for 18x8.5" wheels on a Model 3).

 

[Chris55555]

@mpgxsvcd Yes typo, sorry! Thanks for catching that. I'll ask a mod to fix it if possible.

@Spice_1 I meant "245/45R18 or 235/45R18" (for 18x8.5" wheels on a Model 3).

Would you recommend 235/50R18 for someone who wants more meat on the tire for a better ride on the M3LR?

Edit: Found in another thread they won't fit, I'll stick with 245/45R18

 

[dgoodlan]

@Spice_1 Go with either 245/45R18 or 235/45R18. I prefer 245 for 8.5" wide wheels, I'm running 245/45R18 on 18x8.5" wheels right now on my 2021 M3P. Stock Model 3 18" size is 235/45R18 on 18x8.5" though and that's fine too.

Basically going 245 instead of 235 gives you a bit of extra width and sidewall and diameter, all good things for this car in my opinion. It still fits perfect and is a recommended size for 8.5" wheel width. Just for reference, my other Tesla came with 245 on 8.5" wide wheels, and so did my last ICE car.


@The Other Dan 245/40R18 or 235/40R18 would be very small diameter for a Model 3, don't go that small unless you have some very specific need/reason to.

What 18" wheels you have on your M3P?

 

[Sam1]

315/55/18

 

[tm1v2]

What 18" wheels you have on your M3P?

@dgoodlan Titan7 T-S5 18x8.5" ET35 in Satin Titanium

https://teslamotorsclub.com/tmc/posts/6705435/
https://teslamotorsclub.com/tmc/posts/6791334/

 

[pdx_m3s]

245/45R18 for sure.