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Joined: Jul 2004
Posts: 96
specsgt
Member
specsgt Sep 30, 11:48pm - #288647 
2001 Spec Blue Toyota Celica
Member
2001 Toyota Celica

Joined: Jul 2004
Posts: 96
sf
tire question

I'm about to get some new tires for my stock 15's. The tire size now is 195/60r/15. My question is what do those numbers represent? I know that the last number (15) is the rim size. Any help is appreciated. thanks
Joined: Sep 2003
Posts: 3,077
slidr
Specialist
slidr Sep 30, 11:53pm - #288648 

Specialist
2000 Toyota Celica

Joined: Sep 2003
Posts: 3,077
Saint Louis, MO
The first number is the width of the tread in millimeters.

The middle number is the aspect ratio. It tells you what percent of the tread width that your sidewall is.

The higher the aspect ratio, the thicker your sidewalls are.

So, to find how tall your sidewalls are, take the first number, and times it by 60%.

Aqua Teen Hunger Force...number one in the hood, G
Joined: Jul 2004
Posts: 96
specsgt
Member
specsgt Oct 1, 12:28am - #288649 
2001 Spec Blue Toyota Celica
Member
2001 Toyota Celica

Joined: Jul 2004
Posts: 96
sf
thanks
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