Best Tyre Size For 19" Alloys?

[JTI]

Hi, I have recently fitted some 19" Audi S Line wheels to my MK5 and am getting some rubbing when going over bumps. They came fitted with 255/35/19 tyres and I am wondering what size I need to go for to reduce the rubbing? Is it a case of just looking at the width or do I need to look at the profile also? I read in another thread not to go lower than 225? Wheels are 19 x 8.5J ET48, thanks.

[leebes]

Always found this site to be a good point of reference,

http://www.brick-yard.co.uk/forum/tyre-size-for-rim-width_topic60146.html

Guess the rubbing would depend on where it rubbing. On the lining or on the arch itself? On thing to remember with diameter, your speedo etc is set for a certain diameter wheel/ tyre so dont change that. For example, 17" rim with 45 tyre or 18" rim with 40 tyre have the same overall diameter

[jaffa]

I'd go for a 225/35/19 personally it's a very minimal stretch
You also need to remember that different tyre manufacturers fit differently so some are wider or narrower than other manufacturers


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[Andy]

I had 225/35/19 on mine

[JTI]

Thanks for the replies everyone.

Always found this site to be a good point of reference,

http://www.brick-yard.co.uk/forum/tyre-size-for-rim-width_topic60146.html

Guess the rubbing would depend on where it rubbing. On the lining or on the arch itself? On thing to remember with diameter, your speedo etc is set for a certain diameter wheel/ tyre so dont change that. For example, 17" rim with 45 tyre or 18" rim with 40 tyre have the same overall diameter

Thanks for the link, it looks like I'm right on the limit then at the moment. It's hard to say exactly where the rubbing is but the wheels look really wide at the moment, almost like there are spacers on them, but it looks like they're catching the inside of the arches on the rear and the plastic covering by the arches on the front. I've checked with a speedo calculator and it looks like the reading will be out by about 2mph if I put 225's on there.

I'd go for a 225/35/19 personally it's a very minimal stretch
You also need to remember that different tyre manufacturers fit differently so some are wider or narrower than other manufacturers

Really? I don't understand how a 225 width can be different depending on manufacturer? I would have thought they'd be standard across the board?

Jaffa and Andy, did you get any rubbing at all with 225/35/19's on?

[jaffa]

I have srs tec wider wings on my car so it doesn't really apply to you and Andy had bbs ck 19x8 so the right size for him was 225/35 anyway


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[leebes]

I've checked with a speedo calculator and it looks like the reading will be out by about 2mph if I put 225's on

225 refers to the width of the tyre, so will have no bearing on the speedo accuracy. Its the diameter number which you need to look at and on 19" wheels really should be 35 (eg 225/35/19) = tyre width / tyre depth / inside diameter inches).

Rule of thumb, 17" = 45, 18" = 40, 19" = 35...thus keeping the overall diameter for each wheel size the same.

[JTI]

^Thanks, I was referring to the 225's mentioned (with the 35 profile), not just 225's in general. I'm relatively new to the forum so I am wondering if people have put 225/35/19 tyres on my wheels or similar and will it pretty much eliminate the rubbing? I don't want to shell out on new tyres if the problem will still remain. It's a standard MK5 with no modified arches etc.

[Andy]

What et is the wheels!
I ran 225/35/19 on et alloy 8j with no rubbing
Here is a pic of my old gttdi on 19" bbs ck

[JTI]

Wheels are 19 x 8.5J ET48, thanks.

[andyR43]

+1 for 225/35/19. That's what I have on the front of mine  and no rubbing whatsoever.

[jaffa]

Have you done the arch screw mod?


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[JTI]

^I'd not heard of that but will look to do it once I have different tyres as will still have rubbing on rear.

Good to hear both Andy's didn't have any rubbing, my wheel width is only 1/2" more than Andy mod's. I wonder what offset your wheels are though as mine is ET 48, and on the front they look slightly wider than the arches themselves so I worry that different tyres still won't solve the problem   

[jaffa]

Pretty sure Andys are et44 meaning your wheels poke only 3mm more than your wheels
A 225 will stop the rubbing
If the back is rubbing either go to a 225 or camber in the backs slightly


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[AJP]

There's a bit of misinformation in this thread.

The profile is a PERCENTAGE of the width. Not a dimension in itself.

So for example, the sidewall of a 255 35 19 will be taller than the sidewall of a 225 35 19.

And width does vary, often by 10mm or more, by manufacturer. Not all 225s are even close to 225.

willtheyfit.com is useful, but knowing the basics is essential.