guys i got gsr blades and 3 of the tires or on 195 55 15 and one of them is on 195 65 15 does it matter or not really

 

It does matter. The handling and response characteristics will be changed drastically.

 

Also something to think about is speedometer reading. But this goes right along with handling and response characteristics. You want to try and keep as close as you can to the over all tire height of the original wheel and tire package.

this link should help explain what I mean....


handling and response characteristics

 

That's enough of a difference your ABS will throw an error code.

 

Here is the link I was talking about.

http://www.sstire.com/tireheights.html

 

thanks your right when i look it the 65 looks bigger