Do not install the temporary spare tire on the front wheels (driving wheels):

Guy-Gabriel

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CX5 GT
Page 386 of the CX5 Manual section 7-6

Flat Tire
WARNING
Do not install the temporary spare tire
on the front wheels (driving wheels):
Driving with the temporary spare tire
on one of the front driving wheels is
dangerous. Handling will be affected.
You could lose control of the vehicle,
especially on ice or snow bound
roads, and have an accident. Move a
regular tire to the front wheel and
install the temporary spare tire to the rear.
 
Not good. Best to minimize use go the puny spare.
 
For the Aussie readers - this actually doesn't apply to us.
 
You should do this for any FWD vehicle, not just the CX5. The front tires to 100% of accelerating, braking, and steering; you want full size tires up there.
 
We know practically nobody will actually do this (move a regular tire to front and put mini on back). But the mini spare will rarely get used for a significant length of time by most owners, if at all.
 
But isn't the tire that comes with the CX-5 a full size tire? I didn't realize that it was a mini.
 
I glanced at it, looks to be mini spare. It's under the cargo compartment floor, usually a space way too small for a full sized spare in modern vehicles.
 
Yeah, I saw it there, and I am no specialist in tires (i.e. I am clueless), but I thought it looked full-size. To compliment that, a dealer told me that all SUVs in America are legally obligated to come with a full-size spare for safety reasons.
 
Yeah, I saw it there, and I am no specialist in tires (i.e. I am clueless), but I thought it looked full-size. To compliment that, a dealer told me that all SUVs in America are legally obligated to come with a full-size spare for safety reasons.

Sadly you should never believe anything said by a auto salesperson (at least in the US).

Note: tire size is 155-90-18, temporary spare for sure.
 
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Mazda Australia rejected the temporary spare. As far as I know, we're the only country that turned our nose up at the space saver.

To fit in the boot though, they made it a little narrower.

Wouldn't plan on driving far on it anyway.
 
Page 386 of the CX5 Manual section 7-6

Flat Tire
WARNING
Do not install the temporary spare tire
on the front wheels (driving wheels):
Driving with the temporary spare tire
on one of the front driving wheels is
dangerous. Handling will be affected.
You could lose control of the vehicle,
especially on ice or snow bound
roads, and have an accident. Move a
regular tire to the front wheel and
install the temporary spare tire to the rear.

US manual has same warning.
 
The US and Canada as far as I can research are fitted with a space saving tyre with a size 155 90 R18 where as the Australian market have 185 80 R17 which is basically a real tyre. I have the Australian size which I ordered for myself here in th UK. Although it is classed as a space saving temporary spare its size should be adequate to be used on the front in emergencies if driven sensibly at lower speeds. (IMO)
 
Well, we learn things every day -- I mean I knew that it wasn't safe to drive for very long with a donut and while it is so obvious it never occurred to me that it should be an absolute no on FWD vehicles.
 
Even if it is a 4WD, if you get in a pannic stop situation most of the braking will be done with the front so you need identical tires up there...
 
The US and Canada as far as I can research are fitted with a space saving tyre with a size 155 90 R18 where as the Australian market have 185 80 R17 which is basically a real tyre. I have the Australian size which I ordered for myself here in th UK. Although it is classed as a space saving temporary spare its size should be adequate to be used on the front in emergencies if driven sensibly at lower speeds. (IMO)

Applauso
Do you know what the width of the wheels is? I was thinking of buying a 17 x 6.5 alloy off ebay.
 
I believe it is a full diameter spare but, has a narrow cross-section, so it will have less traction than the regular tire. Therefore the warning.
 

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