ausmini
https://www.ausmini.com/forums/

Easy measuring job for people with 13" wheels
https://www.ausmini.com/forums/viewtopic.php?f=2&t=77742		 Page 1 of 1
Author:  Harley [ Tue Jul 24, 2012 11:17 am ]
Post subject:  Easy measuring job for people with 13" wheels
If anyone has any of the listed, can they please measure the overall width of the mentioned wheel / tyre combination?

175/50/13 on 5.5 inch rim = 185mm (for sime and yokko tyres)
175/50/13 on 6 inch rim = 190mm
175/50/13 on 7 inch rim = 205mm

195/45/13 on 6 inch rim =
195/45/13 on 7 inch rim =

Theoretically, a 175 tyre should be 175 wide, but this will deviate depending on what rim its stretched onto.

For example, a 175/50 tyre should be around 175 wide on a 5.5 / 6 inch rim, but on a 7 inch rim would be expecting the total width to be 200mm wide.

I'll get a photo of what I'm after and the first measurement tonight.
Anyone who can help chase these numbers up would be a great help.

Thanks .
:D
Author:  Maxi23 [ Tue Jul 24, 2012 11:30 am ]
Post subject: 
175/50/R13

on

13x7

=205mm (Or thereabouts)
Author:  Harley [ Tue Jul 24, 2012 11:38 am ]
Post subject: 
Thanks Maxi!

Is the widest part of that the tyre or the wheel lip?
Author:  Maxi23 [ Tue Jul 24, 2012 11:39 am ]
Post subject: 
From the farthest outwards point of the face of the tyre.

Need any other bits measure ?
Author:  awdmoke [ Tue Jul 24, 2012 11:41 am ]
Post subject: 
The sidewall is the widest part (I have the same size combo).
Author:  Harley [ Tue Jul 24, 2012 11:47 am ]
Post subject: 
I'm just chasing up the overall widths, don't need anything else.

Interesting that the sidewall is widest on your wheel combo, I've seen a few 13 x 7s before with 175 tyres on them and the rim is the widest bit, though I realise some tyre manufacturers vary the width a bit.
Author:  Maxi23 [ Tue Jul 24, 2012 12:32 pm ]
Post subject: 
Well that's with the rims off the car, so no weight on them. Also, I am unsure of what pressure they are currently at.

The tyre wall is only 2mm further out than the rim.
Author:  Harley [ Tue Jul 24, 2012 1:43 pm ]
Post subject: 
All good then, thanks!

Just thinking, I know what the wheels are with the rims exposed now, its when people fut 165 tyres on 10x7 or 10x8 rims, which just look silly.
:lol:
Author:  awdmoke [ Tue Jul 24, 2012 6:47 pm ]
Post subject: 
Yeah, with no weight on them the rim is the widest part, but only just:
Image

Looks different once loaded up with my weight :roll:
Image
Author:  69k1100 [ Tue Jul 24, 2012 7:00 pm ]
Post subject: 
http://www.tyrestretch.com/page/download?download=10

This is a visual calculator for tyre stretch/rolling diameter.

It will give you a better indication of the amount of stretch the rim/tyre combo will have, there are hundreds of these calcultors on the net.

The contact patch on the tyre shouldn't change, the shoulder is moulded in so the width of the useable part of the tyre is constant.

the bit that stretches is the sidewall, which is visually eluded to in the calculator.
Author:  Harley [ Tue Jul 24, 2012 7:21 pm ]
Post subject: 
Thanks for that link, thats a pretty good calculator, nearly covers everything I wanted to know. :D
Author:  Harley [ Wed Jul 25, 2012 10:04 pm ]
Post subject: 
Anyone able to help with the three blanks at the top of the thread?

After measuring a few cars, I'm finding that the tyre width size doesn't always match the tyres actual width. The online calculators dont really handle this bit.

Thats why I'm trying to get real life measurements. Not only to help me work out my next wheels, but anyone else with the ever-so-popular, 'will it fit?' thread.
Author:  MiniBob [ Fri Jul 27, 2012 2:46 pm ]
Post subject: 
Harley wrote:
Anyone able to help with the three blanks at the top of the thread?

After measuring a few cars, I'm finding that the tyre width size doesn't always match the tyres actual width. The online calculators dont really handle this bit.

Thats why I'm trying to get real life measurements. Not only to help me work out my next wheels, but anyone else with the ever-so-popular, 'will it fit?' thread.


OKay I'll give it a bash with the other measurements this weekend.
Author:  bnicho [ Sat Jul 28, 2012 1:17 pm ]
Post subject: 
175/50 13 Yokohama on 13 x 6 = 190mm.
Page 1 of 1 All times are UTC + 10 hours
Powered by phpBB® Forum Software © phpBB Group
http://www.phpbb.com/