SSi3
Posts: 295
Joined: Mon Sep 15, 2014 7:55 am
Location: Ontario, Canada

Re: Beating a dead horse... single vendor TIRES!

m6rk wrote: Wed Aug 26, 2020 1:32 pm
SSi3 wrote: Wed Aug 26, 2020 10:29 am
Cool! Can you post pics?
I'll try to post the photo links, since I couldn't manage to post them directly... Here they are...

Above: the original tires Below: the alternative tires
https://photos.app.goo.gl/MNE6Vgq3oRY1mfD88

Rear tire view
https://photos.app.goo.gl/Twh6pjXyKAWnVbEL6

Front tire view
https://photos.app.goo.gl/4XrQMHkBYQxwxrfr5

Front tire fully steered on the left
https://photos.app.goo.gl/R9PFgpfnsnd8iN8p8
[/quote]

Nice thank you, they barely look any different than the original tires
Born electric 4/25/15 (2015 REx)
Re-born fully electric 7/27/19 (2019 i3s BEV)
DaveM
Posts: 7
Joined: Tue Feb 02, 2021 3:21 pm

Re: Beating a dead horse... single vendor TIRES!

m6rk wrote: Tue Aug 25, 2020 6:41 am After a long investigation and comparison period, last Saturday I've finally bought new set of tires for my i3s!

I had no concerns about the tires when I bought my former EV, i3 '14. I tested the car and came into conclusion that the tires compensate their slim dimensions with a stickier compound they've got. For me, handling & braking performance is much more important than longevity. I would rather be safe during 30k km. than having mediocre handling for 40k km.

Now that I switched to i3s '18 my tire options became much more slimmer with 20" wheels... I thought. The original tires are really hard to find & very expensive. I made many technical readings on tire specs & dimensions online and finally I decided to play with tire dimensions on my i3s.

Long story short, I bought one set of "Goodyear Efficient Grip Performance" tires, 195/55 R20 (My first choice was Nokian Wetproof but they were out of stock). At the rear, only the sidewall changed to 55 from 50. At the front, only the thread part changed to 195 from 175. Overall diameters increased to 723 mm. from 703 mm.

The tires are perfectly fitted to the car. I am currently in evaluation period but my estimations after this change are:
- The acceleration, the range and the responsiveness will be a bit decreased.
- Top speed on GPS, the handling/braking performance, the comfort will be a bit increased.

Regarding speed, I mean the difference between the GPS speed value and the speedometer value will change. For ex: if it was showing "100kph @speedometer => 97 kph @GPS" before, then it will show "100kph @speedometer => 100 kph @GPS" now (which is currently the exact case). That means also the range data will decrease even if the tires have exactly the same characteristics with the original set! It is just because the car will cover more range then it shows when we look at GPS data. So, when comparing the range difference between original tires and current tires, we have to take this into account.

Once you opt to use 195/55 R20 on all 4 wheels you have plenty of options for i3s: Nokian Wetproof, Goodyear Effigrip, Michelin Primacy, Conti Eco Contact, Pirelli P7, Uniroyal, Hankook etc...

As you probably know the front wheel is narrower than the rear wheel, 5.5J & 6J respectively. 195 is the maximum width compatible with 5.5J wheels, so nothing to worry about that.

Strangely, there is much less option of summer tires for 18" & 19" wheels at 195 or less width.

Since very few i3 owners do more than 15k km per year and some of them -like me- have also a set of winter tires, 4-5 years of usage seems to be acceptable. Using the same tire set longer than 5 years is a bit risky, since the tire compound will certainly be affected by the environment (UV, temperature etc.)

Cheers,
Gosh, so glad to have found this thread. I’m having a tough time finding the 195/55/20s anywhere. Any recommendations?
frictioncircle
Posts: 347
Joined: Fri Nov 25, 2016 11:23 pm
Location: USA West Coast

Re: Beating a dead horse... single vendor TIRES!

Gosh, so glad to have found this thread. I’m having a tough time finding the 195/55/20s anywhere. Any recommendations?

Hello Dave M –

Let us know where you're located (US, UK, etc.) so we can offer appropriate answers.
DaveM
Posts: 7
Joined: Tue Feb 02, 2021 3:21 pm

Re: Beating a dead horse... single vendor TIRES!

frictioncircle wrote: Wed Feb 23, 2022 11:32 pm
Gosh, so glad to have found this thread. I’m having a tough time finding the 195/55/20s anywhere. Any recommendations?

Hello Dave M –

Let us know where you're located (US, UK, etc.) so we can offer appropriate answers.
I’m in the US. I see quite a few UK sites offering that size.
MKH

Re: Beating a dead horse... single vendor TIRES!

Tire Rack always has them in stock, and ships them overnight for free. In major centers they often have mobile installers who will then come to you and install them right in your driveway or parking spot. Had my last set from TR done that way, and it was cheaper than what Discount Tire quoted me for the install and balancing.

https://www.tirerack.com/tires/TireSear ... rmance=ALL
DaveM
Posts: 7
Joined: Tue Feb 02, 2021 3:21 pm

Re: Beating a dead horse... single vendor TIRES!

Maybe its a regional thing for tire rack - I see nothing in that size.


MKH wrote: Thu Feb 24, 2022 10:55 am Tire Rack always has them in stock, and ships them overnight for free. In major centers they often have mobile installers who will then come to you and install them right in your driveway or parking spot. Had my last set from TR done that way, and it was cheaper than what Discount Tire quoted me for the install and balancing.

https://www.tirerack.com/tires/TireSear ... rmance=ALL
frictioncircle
Posts: 347
Joined: Fri Nov 25, 2016 11:23 pm
Location: USA West Coast

Re: Beating a dead horse... single vendor TIRES!

I've had good luck getting Ecopias in the past at a Firestone-brand store. As Bridgestone owns Firestone maybe they might have better access to stock?
DaveM
Posts: 7
Joined: Tue Feb 02, 2021 3:21 pm

Re: Beating a dead horse... single vendor TIRES!

I just ended up buying the dang ecopias. $1500 😕

The rear tires (I have an “s”) have less than 8k miles and are like racing slicks at this point. My dealer is going to see if they can make a claim with Bridgestone even though there is no treadwear warranty. I’ll post back when I hear from them.
frictioncircle
Posts: 347
Joined: Fri Nov 25, 2016 11:23 pm
Location: USA West Coast

Re: Beating a dead horse... single vendor TIRES!

WOW, that price is insane! :o

The last time I bought a set of i3 tires was in 2018 – around $850 for four 19-inchers.

I'm going to have to be extra vigilant for potholes now that I have an s with 20" wheels.
mark47777
Posts: 1
Joined: Sat Sep 01, 2018 2:01 am

Re: Beating a dead horse... single vendor TIRES!

Many thanks DaveM, this was extremely helpful.

Did you run into any issues, especially with the wider tyre in front? That is my only hesitation atm.

As for options, there are also some great all season options out here in Europe, not sure about US.

I am currently looking at Michelin cross climate 2, which have been released recently in the size 195/55/R20. I have these on my old E39 BMW 5 and they are simply amazing in all aspects; look (very 'strong' stance and beautiful V-shape profiel) as well as ride comfort, wear and noise (never had a more quiet tyre).
Price will be slightly higher, but well worth it.

Conti and Bridgestone also have all season alternatives, but I have no experience with those an would always opt for Michelin.

Return to “Technical BMW i3 Discussions”