ted99
Posts: 82
Joined: Tue Sep 16, 2014 2:47 pm
Location: Houston, TX

Press Release on new Bridgestones for the i3

Thu Jun 07, 2018 8:48 am

Another Forum site is reporting a BMW press release about new Bridgestone tires for the i3 and i3S. Are these the ones we already knew about for the i3S? If so, the presser seems to be saying that these will also be fitted to the normal i3.
Rex, Gigaworld, Capparis White, Juicebox

EVMan
Posts: 232
Joined: Sat Feb 25, 2017 4:31 pm
Location: USA, CA

Re: Press Release on new Bridgestones for the i3

Thu Jun 07, 2018 8:09 pm

Looks like the tier was launched early and now we have the press release . Talk about delay
But if the new ones can be fit to the older i3 , then is it possible to have all 4 tires in Rex as same ?

For Rex , while the EV range is not as important, the rear ones wear out early, and cannot be swapped with front
In my opinion , BMW re invented the wheel , but forgot about tire rotation.
2016 22KWH Rex ( Lease to Return ) ~ Model 3 Dual Motor, Long Range ( Wait-listed )
2017 33KWH Rex
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jadnashuanh
Posts: 4103
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Press Release on new Bridgestones for the i3

Thu Jun 07, 2018 11:14 pm

EVMan wrote:Looks like the tier was launched early and now we have the press release . Talk about delay
But if the new ones can be fit to the older i3 , then is it possible to have all 4 tires in Rex as same ?

For Rex , while the EV range is not as important, the rear ones wear out early, and cannot be swapped with front
In my opinion , BMW re invented the wheel , but forgot about tire rotation.

People that have (mistakenly) installed the wider rear tire on the front quickly found out that it doesn't work...quickly ruined the tire while it rubbed on things. So, at least without maybe a spacer to give it a bit more space, and then, may end up illegal or rub on the fender, too, no, you can't get the wider wheel/tire on the front of a stock i3. The i3s is designed to handle wider tires and wheels on the front.

Many BMW models have staggered tires/wheels, and the rears won't fit on the front. This isn't unusual on performance cars. I think part of the reason the i3 was built to enable larger tires on the rear was to help accommodate the extra 300+ pounds of the REx...using them on the BEV was a side benefit. The base models and winter tire sets all are square using the smaller front wheels/tires.
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV

ted99
Posts: 82
Joined: Tue Sep 16, 2014 2:47 pm
Location: Houston, TX

Re: Press Release on new Bridgestones for the i3

Fri Jun 08, 2018 10:29 am

jadnashuanh wrote:
EVMan wrote:Looks like the tier was launched early and now we have the press release . Talk about delay
But if the new ones can be fit to the older i3 , then is it possible to have all 4 tires in Rex as same ?

For Rex , while the EV range is not as important, the rear ones wear out early, and cannot be swapped with front
In my opinion , BMW re invented the wheel , but forgot about tire rotation.

People that have (mistakenly) installed the wider rear tire on the front quickly found out that it doesn't work...quickly ruined the tire while it rubbed on things. So, at least without maybe a spacer to give it a bit more space, and then, may end up illegal or rub on the fender, too, no, you can't get the wider wheel/tire on the front of a stock i3. The i3s is designed to handle wider tires and wheels on the front.

Many BMW models have staggered tires/wheels, and the rears won't fit on the front. This isn't unusual on performance cars. I think part of the reason the i3 was built to enable larger tires on the rear was to help accommodate the extra 300+ pounds of the REx...using them on the BEV was a side benefit. The base models and winter tire sets all are square using the smaller front wheels/tires.



So you would see no problem with fitting the "fronts" of new tire sizes (with wheels) all-around on an older i3?
Rex, Gigaworld, Capparis White, Juicebox

rtanov
Posts: 146
Joined: Mon Oct 20, 2014 10:55 am
Location: Cincinnati, OH, USA

Re: Press Release on new Bridgestones for the i3

Fri Jun 08, 2018 10:47 am

Checking with TireRack - it looks like the 195 mm wide for the i3s rear only come in 20 inch wheel size - Ecopia EP500. So, if one wants to upgrade older i3 would have to use 20" wheels and spacers. The specs don't give the rim width range for the 195's but I'm guessing they would be OK on the standard 20" wheels. The Ecopia EP600 which is for the 19" wheels has 175 mm as widest option so no wider upgrade there for now.
2014 BMW i3 REx
2014 BMW i3 BEV - retired

alohart
Posts: 1388
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: Press Release on new Bridgestones for the i3

Fri Jun 08, 2018 12:58 pm

ted99 wrote:So you would see no problem with fitting the "fronts" of new tire sizes (with wheels) all-around on an older i3?

2014-2016 i3 BEV's with 427 wheels (standard on North American Mega World) had the same size wheels and tires front and rear (not sure about the slightly heavier 2017-2018 models). However, all other i3's have had wider wheels and tires on the rear.

I would have preferred to be able to rotate tires in the normal fashion, but not enough to fit narrower wheels and tires on the rear of our 2014 BEV. The rear tires tend to wear faster than the front tires as is, so installing narrower tires on the rear would likely decrease rear tire life. The additional weight of the REx concentrated over the rear wheels might result in the load supported by the narrower rear tires exceeding their load rating when an i3 is carrying its maximum load.
Aloha,
Art

2014 BMW i3 Arravani Grey, Giga World, Tech + Driving Assist, Parking Assist, DC Fast Charging, JuiceBox EVSE

jadnashuanh
Posts: 4103
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Press Release on new Bridgestones for the i3

Tue Jun 19, 2018 2:13 pm

I've not played with measuring the offsets and clearances of the tire/wheel packages on the i3. But, I do know that if you try to put a rear tire on the front, you'll not get far! The i3s, can't say...I'm sure you could probably put the wider front tires on the rear of the i3s, but not sure if the rears would fit. The fronts are maybe the harder one to measure since they both turn, and it's difficult to verify at full bump stop positions. Then, you have the safety and cosmetic issue about the tire edge sticking out beyond, or into the fender. The plastic fenders wont' take well to a flaring tool!

Personally, I don't see the allure of wider tires on the i3...they weigh more, they will have more drag, and cost more...I much more yearn for a few more miles than I do for g's on a turn.

SPacers were developed so that aftermarket wheels could be made to fit on more cars to minimize stocking the more expensive wheels. Some people use them to move stock wheels further out, gaining wider track, but that can throw off the stability and longevity of the vehicle if not done properly. IOW, the primary reason for spacers is to get the outer edge of the wheel where it needs to be when they aren't an exact match for the OEM wheel's offset. They move the tire to the proper position in the wheel well when the wheel's offset doesn't match the OEM configuration.
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV

EVMan
Posts: 232
Joined: Sat Feb 25, 2017 4:31 pm
Location: USA, CA

Re: Press Release on new Bridgestones for the i3

Wed Jun 20, 2018 10:05 am

In US market
So my rear Rex tiers are due replacement, front look little better than rear.
I was happy to see local Costco ( one stop, no hassle ) carry these tires. The issue is they have promotions always as set of 4. I am waiting for their next bridge stone promotion. They have /had a nice promotion for Michelin just now

Before i get all of them changed together, any other suggestions , would be welcome. Ideally, i should change 2 at a time , based on their life, but financially it may be even more expensive , with no real gain.

It looks like model X also has the same issue with tires. but i guess people buying X have deeper pockets.

I am no tire expert, but my Honda civic tiers from costco came with 60K miles warranty for tread Life. and i am talking about the cheaper ones, had paid around $450. Costco and one even better option for $550 , which had even more life , i think at 80K . The factory ones were not as good.

What you save with electricity , goes in the tires. The worst part is for may people, range is not the issue for longer range EV's or Rex
2016 22KWH Rex ( Lease to Return ) ~ Model 3 Dual Motor, Long Range ( Wait-listed )
2017 33KWH Rex
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jadnashuanh
Posts: 4103
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Press Release on new Bridgestones for the i3

Wed Jun 20, 2018 1:23 pm

Usually, if you look at the grip, the higher that is, the lower the life of the tire. You may never need maximum grip, but there are differences in stopping distances between tires and a couple of feet can make the difference of missing or hitting something. It's all a trade off. Unfortunately, there aren't many choices on the i3.
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV

EVMan
Posts: 232
Joined: Sat Feb 25, 2017 4:31 pm
Location: USA, CA

Re: Press Release on new Bridgestones for the i3

Wed Jun 20, 2018 7:00 pm

Looks like costco is running promotion now
https://www.costco.com/auto-tires.html for Bridgestone
2016 22KWH Rex ( Lease to Return ) ~ Model 3 Dual Motor, Long Range ( Wait-listed )
2017 33KWH Rex
Solar ToU Plan

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