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#122 ·
If you want to learn more about using tires in the winter then check out-

You have more options if your winter weather is mild- All Season vs Winter Tires

If you have more snow or severe winter weather then Winter Tires are worth investing in.

If you also have the PHEV then keep watching.

2:20 Stopping distance in snow from 30 mph
5:25 Comparison AWD on Winter tire gives better 0-60 in snow
8:50 Max Incline FWD/RWD/AWD on various tires in snow
10:00 Using Winter tires for PHEV/EVs
 
#123 ·
Article from R&T about Winter tires-

For Example
Michelin X-Ice Snow SUV Severe Snow Service rated
265/50-19 $286 each, fits wheels 7.5-9.5" wide, perfect for 8.5" wide rim, 110 XL load rated, tire diam. 29.5" (a little shorter than OEM but can work).
275/45-21 $490 each, OEM size, 110 XL load rated, tire diam. 30.8"
Tirerack owner survey results for 275/45-21 winter tires
 
#124 ·
Where does one find wheel info for offset, bolt pattern, minimum wheel weight capacity requirements, etc. I looked through the 711 pages of the manual <ZZZZZZZ> and couldn’t find any info. I have a Turbo S with 21” wheels, and am trying to figure out what the recommended options are for winter wheel/tire sizes, offset, etc as well as what my stock wheels are. I‘m aware that Tire Rack lists various diameter options, but I’m wondering if there are specific Mazda recommendations/requirements.
 
#125 ·
LIRS6 said:
Where does one find wheel info for offset, bolt pattern, minimum wheel weight capacity requirements, etc. I looked through the 711 pages of the manual <ZZZZZZZ> and couldn’t find any info. I have a Turbo S with 21” wheels, and am trying to figure out what the recommended options are for winter wheel/tire sizes, offset, etc as well as what my stock wheels are. I‘m aware that Tire Rack lists various diameter options, but I’m wondering if there are specific Mazda recommendations/requirements.
Click to expand...
You won't find the wheel specs in the manual.

see post #1

OEM 21 x 9.5 J ET45 - on front and rear
5x114.3 bolt pattern , centerbore 67.1 mm
Tire 275/45-21 Tire diam. 30.7"

If you go to Tirerack.com and put in your CX-90 model and trim you can choose what size wheels from 18" and it will give you various sample options. For Winter both 18" and 19" wheels and tires will fit and work with your Turbo S. Tirerack has already determined which wheels will fit. Using their wheel specs you can go shopping on your own. Some Canadian owners have posted sources they used for Winter wheels.
 
#126 ·
PhEVuser said:
You won't find the wheel specs in the manual.

see post #1

OEM 21 x 9.5 J ET45 - on front and rear
5x114.3 bolt pattern , centerbore 67.1 mm
Tire 275/45-21 Tire diam. 30.7"

If you go to Tirerack.com and put in your CX-90 model and trim you can choose what size wheels from 18" and it will give you various sample options. For Winter both 18" and 19" wheels and tires will fit and work with your Turbo S. Tirerack has already determined which wheels will fit. Using their wheel specs you can go shopping on your own. Some Canadian owners have posted sources they used for Winter wheels.
Click to expand...
Many thanks PhEVuser! Quick question; you reference bolt pattern 5 x 114.3mm above - a search on Tire Rack using our vehicle yields their suggestion of wheels which are 5 x 114mm …. Is the .3 difference insignificant?

Also, I’ve seen comments about “-1”, which I understand to mean 1” diam less than the vehicle wheel. But is the thinking that one shouldn’t go beyond “-1”, i.e. Not less than 20” if you have a 21’ wheel? Or does that not matter, and its basically a matter of what sizes will fit
 
#127 ·
They just left off the .3.

My 18 inch wheels fit just fine on my CX-90. I have a set from TireRack with Blizzak snow tires mounted. The main concern going to a smaller diameter wheel is interference with the brake calipers rubbing on the inside of the wheels - no issues with that on a CX-90.

TireRack verifies fit before they make a recommendation.
 
#128 ·
Yes, the 0.3" difference is essentially equivalent for fitment.
see

5x4.5 vs. 5x114.3 vs. 5x114: What Is The Difference?

Are you confused about the 5x114, 5x114.3, and 5x4.5 bolt patterns? Read this article to know more as it answers several frequently asked questions about them.
hondabase.com

In general when going to aftermarket wheels, just have to check that brake calipers have enough space for cooling (at least 3mm of air gap), the inner wheel barrel doesn't scrape against anything, the offset allows enough clearance from the inner suspension parts, and the amount of wheel poke is not too far out beyond flush that it kicks up rocks to hit the fenders.

When a wheel is as large as 21" diameter you have quite a bit of play with possible wheel sizes that will fit. The larger wheel as OEM allows for a taller tire diameter of 30.7" which is more compatible with SUV designed tires. Many good tires are built for smaller tire diameters even with a 21" diameter and are not suitable for the CX-90. Fortunately tire makers are doing a good job providing tall tire sizes so choices are still good. As long as the wheel can fit over the brakes which an 18" wheel can do you can choose any wheel from 18" to 22" and it will work with the CX-90 which is nice. This also allows for various tire sizes to fit the wheel and get a tire diameter of about 30.5 to 30.7" so that it fills out the wheel well and doesn't increase wheel gap. Tire width is not that crucial as long as the tire fits the wheel width range with perfect fit being better for handling, performance and wear on the tire.

Winter tires can be more narrow and work fine in the snow. Taller sidewall helps to give more cushion but may also reduce handling crispness or responsiveness. Just because a tire is 45 series doesn't mean it can't offer reasonable ride comfort, this is the result of good tire design. However large tires can be quite expensive so always keep tire pressure up for best wear.

As tires age the rubber gets worn down and harder which means it wears slower but ride quality can be harsher, noisier and less grippy. I am always happy to get a new set of tires and can usually tell when the new tires are mounted and used. ;)
 
#129 ·
hnt4943 said:
I just put on a set of Vredestein Wintrac Pros in Tire Rack's recommended -1 wheel sizing, 265/60R-18.

Have only done a really short test drive, but they felt pretty good on dry roads. Hoping they're good tires, it's a new brand for me.
Click to expand...
What wheels did you use for your 18"? I tried some steelies, but they definitely didn't clear the brake calipers
 
#131 ·
ginogalluzzo1 said:
Hey everyone, so i'm in the final stages of signing for a cx90 GT phev with the 21 inch wheel package.
I currently own a 2021 cx9 on 20s and I ran the winter tires on 18 inch black steel wheels.... I was hoping to keep my tire and wheel package for the cx90 but the sales guy says that there's rules for EV's and PHEV's and you apparently can't run them on steel wheels.
Has anyone else heard this or know if this is legit.... it seems like BS to me because I haven't found any documentation online supporting this fact.
Any help would be appreciated, Thanks
Click to expand...
That doesn't really sound correct, steel vs Allow wheels should not make a difference if they meet the wheel specs for the CX-90. However if Steel wheels come in certain smaller diameter sizes then it is possible they might not fit over the brake calipers.

When dealing with a wheel shop tell them you have a 2024 CX-90 and they can check if a wheel they sell will fit or at least they can do a test fitting.
 
#135 ·
I paid the extra $260 ( ?? ) for the installed TireRack TPMS sensors. That way I don't have to pay every spring to have the OEM sensors swapped between wheels. The CX-90 can read the new sensors without the need for a re-learning tool. They worked by the time I reached the end of our driveway.
 
#136 · (Edited)
West MI Jim said:
I paid the extra $260 ( ?? ) for the installed TireRack TPMS sensors. That way I don't have to pay every spring to have the OEM sensors swapped between wheels. The CX-90 can read the new sensors without the need for a re-learning tool. They worked by the time I reached the end of our driveway.
Click to expand...
OK, thanks for the info on the TPMS sensors. It's nice not to have to re-learn with a wheel swap, why didn't they have that feature from the start and is that the current standard for new Mazdas?

About TPMS (been around for over 20 years)
inertion.org

The History of TPMS Lights - Inertion

One of the most dangerous predicaments facing automobile drivers is a problem that is easily overlooked but takes minimal effort to correct. It is low tire pressure, and motor vehicles didn’t always have low tire pressure warning equipment that we have today. Back in the 1970s, Indiana State...
inertion.org inertion.org
www.tirereview.com

10 Years of TPMS: A Technology Comes of Age - Tire Review Magazine

September 2017 marked the 10-year anniversary of mandatory tire pressure monitoring systems (TPMS). During these past 10 years, more than 147 million vehicles were sold with TPMS.
www.tirereview.com www.tirereview.com
106sttire.com

Everything you Ever Wanted to Know about TMPS, FAQ about Tire Pressure Monitoring Systems - 106 St. Tire & Wheel

The ABCs of TPMS: FAQ about TPMS (Tire Pressure Monitoring System) from the experts at Queens 106 St Tire & Wheel I’m hearing a lot about tire...
106sttire.com 106sttire.com
 
#137 ·
Good question ! On my wife's 2016 Chevy Cruze I could do a re-learn with a simple $15 tool. On my KIA Sorento it took a more expensive tool to do the job that the tire store had to use. For those cars the TPMS module needs to be told at which wheel the sensor is located ( they each have an ID number that is sent to the TPMS module ).

I was reading that on some cars ( apparenty including the CX-90 ) that there is an "antenna" near each wheel and the TPMS knows the strongest signal received at each wheel lets the TPMS module know that must be the TPMS sensor mounted in that wheel. Nice system, IMO. So when I swap my OEM wheels back on in the spring, no re-learn is necessary.
 
#138 ·
West MI Jim said:
I paid the extra $260 ( ?? ) for the installed TireRack TPMS sensors. That way I don't have to pay every spring to have the OEM sensors swapped between wheels. The CX-90 can read the new sensors without the need for a re-learning tool. They worked by the time I reached the end of our driveway.
Click to expand...
Thanks for the info. I think I read somewhere someone saying it needs to be brought in to the dealer to program the new TPMS but glad to hear that's not true.
 
#139 ·
I'm glad too !!

If that was required a good tire store could probably do it instead of the dealer. My dealer is about an hour drive and the local tire store that does my riotations is only 10 minutes away.

Just to satisfy my curiosity, I was looking at the tire pressure monitors for recent Mazda's at Rock Auto ( no listing yet for the new CX-90 ) and noticed Mazda has been using the same sensor in most models for the last several years. I bet the same sensor is also being used on the CX-90.

I considered getting the tire & rims without the sensors to save about $100 on sensors but then I would have had to pay the local tire shop to mount the tires on the rims and do a balance and in the end, that would have just about cost me the same money.
 
#140 ·
A tale of caution. I was lucky. I come from the snow belt and I v seen this happen before but living in TN I kinda forgot. I left the CX90 with two front wheels in the garage and most of the car on my inclined driveway. It was at the top. I turned and saw the car moving down the driveway. I grabbed it by the front wheel area and I was going for a ride. I saw the back wheels locked so I made a quick choice to let it ride, LOL. I immediately thought when it hit the street it would stop. and it did. Lucky I missed the brick light post. I can laugh now.
 

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