175/75R13 onto Standard HC steel rims

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175/75R13 onto Standard HC steel rims

Postby VampireTigger » Mon Aug 07, 2017 11:05 am

Is this possible?

I used to run that size tyre on Rostyle on my previous Viva but I'd prefer to retain the original look rims for the car I just purchased as it is very original. Yes, I know the wider tyre is not original but I found in the past the back end was a lot more stable with the extra width.

I'm probably going to go with current generation Michelins as I've been running Michelins on my Audi A4 for a decade and found them an excellent tyre. It's a compromise between originality and practicality where I prefer the car on the road and not in a hedge!

Any advice greatly appreciated.
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Re: 175/75R13 onto Standard HC steel rims

Postby 1972nail » Mon Aug 07, 2017 1:01 pm

I would say that it is possible but not desireable. The extra width on the standard rim will create a bit more 'balooning' of the sidewall. This in turn makes the side wall more flexible causing a loss in feel as the rim moves about more over the centre of the tyre on cornering. Modern low profile tyres of 50, 45 and 40 % profile are specifically chosen to give more feel with the extra width that is desired by modern owners.

There are 175/50 profile tyres but they are too small and will lower the gearing too much. Straight 165/80 profiles are very close to the rolling diameter of the original 5.20 crossplies fitted to the early Delux cars and will give a slight increase in gearing over 155's, however you will still get increased sidewall flex over the 155's.

You could also considering getting the original wheels banded from the original 4 1/2" to 5 or 5 1/2 inches and then fit the 175/70's.
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Re: 175/75R13 onto Standard HC steel rims

Postby VampireTigger » Mon Aug 07, 2017 1:07 pm

Thanks for the advice.

If I can get a modern day tyres in 155R13 think that could be my best move? I wouldn't have any extra width but a modern tyre should have more grip than what I had 25 years ago.
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Re: 175/75R13 onto Standard HC steel rims

Postby 1972nail » Mon Aug 07, 2017 2:03 pm

You can buy Michelin XAS at almost £200 each but there are other alternatives.

https://alltyres365.co.uk/Tyre/car/summ ... c0EALw_wcB

http://www.blackcircles.com/catalogue/m ... e=11305366
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Re: 175/75R13 onto Standard HC steel rims

Postby VampireTigger » Mon Aug 07, 2017 2:09 pm

& of course I actually originally meant 175/70R13, having double checked I think that was the standard size on the wider RoStyle rims. Please tell me if I'm still wrong!
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Re: 175/75R13 onto Standard HC steel rims

Postby 1972nail » Mon Aug 07, 2017 4:14 pm

Yes, standard size on the Rostyle 5" wide rims.
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Re: 175/75R13 onto Standard HC steel rims

Postby VampireTigger » Mon Aug 07, 2017 4:55 pm

Image

It's going to the body shop to have the filler in the front passenger wing replaced with metal and a bit of tidying such as removing the rust marks on the rims. As the tyres are coming off and I suspect it's been stood quite a while the 155/80R13 Michelins you recommended from Black Circles look a wise investment.

Thanks for the help.
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Re: 175/75R13 onto Standard HC steel rims

Postby 1972nail » Mon Aug 07, 2017 6:44 pm

That's a nice car. Good to hear that it's being improved and looked after. I didn't recommend the Michelins from Black Circles just shared a link to give an idea of price and availability.
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Re: 175/75R13 onto Standard HC steel rims

Postby VampireTigger » Mon Aug 07, 2017 7:30 pm

I had actually already found them on Black Circles but you confirmed the size was correct as 155/80R13. When the car is on way to the bodyshop I'll order them for direct shipment.

Checked our work suppliers, Micheldever, Group Tyres, Merrits, Stapletons and they were all 20% or more higher than Black Circles.
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Re: 175/75R13 onto Standard HC steel rims

Postby 1972nail » Mon Aug 07, 2017 7:54 pm

Result ..... :D :D :D
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