Space Saver Tyre for the mighty toyota Aqua

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samgdan

160 posts

Master Geek

#315169 18-Jun-2024 21:27

Hi all,

I'm getting a bit confused about this.

my mighty toyota aqua 2014 did not come with a spare tyre, it came with something else that I personally dont trust, anyway, i want to buy a space saver tyre but I cant figure out the correct size.

Current tyre size is 175/65/r15 it has 4 studs.

from my research online i have seem two different size that might work:

T125/70D16 and T125/70D15

question:

How do I worked out the correct size of the space saver tyre?

thank you all 🤗

lxsw20

3552 posts

Uber Geek

Subscriber

#3250662 18-Jun-2024 21:31

The 16 is closer - just under 5% smaller. https://tiresize.com/comparison/

125/70 17 would be very close.

I'd go to a Toyota wreckers and tell them what you're after. They will have something.

There is more than one 4 stud measurement. Common being 4x100mm and 4x114.3mm

samgdan

160 posts

Master Geek

#3250670 18-Jun-2024 22:23

There is more than one 4 stud measurement. Common being 4x100mm and 4x114.3mm

I am guessing this is the distance between 2 studs.... I will double check tomorrow. cheers

Batman

Mad Scientist
29760 posts

Uber Geek

Trusted

Lifetime subscriber

#3250672 18-Jun-2024 22:38

samgdan:
I am guessing this is the distance between 2 studs.... I will double check tomorrow. cheers

No it's not

It's the bolt circle diameter

Draw a circle joining the center of all the holes, diameter of that circle

Which incidently would be the distance between center of opposite holes of a 4 stud wheel

samgdan

160 posts

Master Geek

#3250674 18-Jun-2024 23:04

100mm and114.3mm
Circle diameter? There must be a typo then...

Bung

6477 posts

Uber Geek

Subscriber

#3250675 18-Jun-2024 23:36

It's one or the other. Toyota Aqua should be 4 studs x 100mm pitch circle diameter. 100mm between centres of opposing studs, 70.7mm between centres of adjacent studs.

lxsw20

3552 posts

Uber Geek

Subscriber

#3250676 18-Jun-2024 23:45

Batman:

No it's not

It's the bolt circle diameter

Draw a circle joining the center of all the holes, diameter of that circle

Which incidently would be the distance between center of opposite holes of a 4 stud wheel

I think you've found the most confusing way possible to explain that.

Jase2985

13457 posts

Uber Geek

ID Verified

Lifetime subscriber

#3250689 19-Jun-2024 06:51

lxsw20:

Batman:

No it's not

It's the bolt circle diameter

Draw a circle joining the center of all the holes, diameter of that circle

Which incidently would be the distance between center of opposite holes of a 4 stud wheel

I think you've found the most confusing way possible to explain that.

but that's exactly what it is, Pitch Circle Diameter, the diameter of a circle that goes through the centre of all the wheel studs.

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samgdan

160 posts

Master Geek

#3250729 19-Jun-2024 09:26

thank you for the clarification.

I have further investigated and it seems that T125/70D16 is the correct size...... i hope i right 😬