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Foxsake

Stretched Tyres Tips

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I will need some new tyres soon, they currently catch slightly on the rears.

 

I was wondering what size i need to go down to.

 

To achieve a tyre stretch - which also hopefully reduces the walls catching the arches.

 

Sizes in use currently -

 

Front - 235/35/19

Rear - 265/30/19

 

 

Thanks

 

 

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You're gonna have to tell us how wide your wheels are!

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You're gonna have to tell us how wide your wheels are!


Not too technically minded, never had to change the tyres in 4yrs of ownership.

How do i find this out?


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Maybe post a pic of your wheels if they're OEM or link to the ones you bought..

It all depends on width of wheel and offset (how far the lip sits away from the hub). If it's only slightly rubbing it sounds like 255/30/19 will work.

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Maybe post a pic of your wheels if they're OEM or link to the ones you bought..

It all depends on width of wheel and offset (how far the lip sits away from the hub). If it's only slightly rubbing it sounds like 255/30/19 will work.



How do i measure these, Obviously sounds like i take the wheels off? Thanks


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It's usually stamped on the inside of the wheel, generally on either the hub or one of the spokes..

Are they OEM wheels? I can't tell from your avatar pic..

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Genuine 19" Alpinas?

Aren't they 8.5J and 9.5J?

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It's usually stamped on the inside of the wheel, generally on either the hub or one of the spokes..

Are they OEM wheels? I can't tell from your avatar pic..



The avatar pic is some Style 32's i stupidly sold previously.



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They look like genuine Alpina's (air valve under the central hub cap, I can't see it in the pic anyway)?

I think they might give you the dimensions/offsets on the front side of the hub under the centre cap?

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They look like genuine Alpina's (air valve under the central hub cap, I can't see it in the pic anyway)?

I think they might give you the dimensions/offsets on the front side of the hub under the centre cap?


Yes its under the cap. This is only removed with a security key and then you can access the Valve/Locking Nuts.

I will have a look later tonight or the weekend.


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I'm not surprised you're getting rubbing, a 265/30 is too wide. Even an M3 only uses a 255. As above, a 255/30 will be better, it will be a slightly lower profile than a 265/30 as well. 

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Think the wheels may have came off E39. They were bolted on when i brought the car.

Here is the centre cap information as requested, i think i will have to take the wheels off to get the size.

8471b44383fd9233cae67d921bd4b66d.jpg29809b16f611f36674379dd8b0b2e963.jpg


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No, the sizes will be on the wheel under the cap you just removed.

I would try 255/30/19 on a 9.5j alloy.

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Sizes are as follows -

Front - 8.5J
235/35/19

Rear 9.5J
265/30/19

What sizes are best to reduce/eliminate rubbing.

What sizes are best for tyre stretching.


Thanks


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I think the fronts do slightly catch on the inside at full lock?

So a recommended size for the fronts too please.


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Basically go 10 narrower on both front and rear.. So

225/35/19 front

255/30/19 rear

The profile is a percentage of the width so will be slightly lower profile (not enough to knock out the speedo so don't worry there). You should have more clearance all around that way.

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225/35/19 and 255/30/19 are perfect for 8.5j and 9.5j

The speedo is spot on.

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Thank you guys! This is much appreciated, especially when i can make a saving ££'s too.


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225/35/19 and 255/30/19 are perfect for 8.5j and 9.5j
The speedo is spot on.



Would the speedo be affected if the rears were upped to "35's?


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17 hours ago, Foxsake said:

 

 


Would the speedo be affected if the rears were upped to "35's?


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Yes. Get your calculator out or use www.willtheyfit.com to check the difference.

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On 29/08/2017 at 19:36, Foxsake said:

 

 


Would the speedo be affected if the rears were upped to "35's?


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Yes, it's quite a difference in sidewall height. 

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