TYRES AGAIN

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Dennis Nicholas
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Post by Dennis Nicholas » Sun Nov 04, 2018 3:40 am

I need 2 new tyres for my GTC.
1. Internet search has revealed a table that shows "standard" 185 x R14 to be larger dia. than 185/80 x R14. The Reliant workshop manual says tyres are 185 X14 which would indicate it is the larger "standard" size - so what was the reference that has led to the generally accepted size for Scimitar GTE being 185/80? R14? and not the larger 185 X 14???

2.Another table shows 195/75 X 14 as being 0.54% (3.5mm) smaller dia. than 185/80... giving speed true 50 = 49.73 and 100 = 96.34.
3. Does anyone have experience of the following tyres:
a. NANKANG N605 195/75 R14 92H (PNEUS ONLINE £48.33each with free delivery for 2) Fitting will be extra. rating E, C, 72dB
b. Superia RS200 205/70R14 98H 1.4% (9mm smaller) £44.
c. TAYAT TYRES two FM316 195/70 R14 91H for £69.....B rating for wet but 3.66% (23mm) smaller 50mph = 48.17 and 100 = 96.34.
smaller tyres = less mpg.

My style of motoring is moderate and I do not corner hard (i.e. old codger motoring :( ). The NANKANG seems to be a good choice for the price and being so close to 185/80 in size though the TAYAT tyres at £34.50 each seem tempting.......but extra fuel consumption with the smaller tyres would probably cost extra in the long run over the life of the tyre.

Dennis


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Post by David Tew » Sun Nov 04, 2018 6:48 am

I think tyres without profile markings were 82%. I don't think they're made now so 80% is the closest.

I'd go for the Nankang. A while ago at Castle Combe I met someone who worked on tyre testing at Millbrook. He said Nankang were the only tyres they had tested that didn't need balancing and were perfectly symmetrical. They bought their tyres through retailers so there was no manufacturer interference.
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Post by efi_sprintgte » Sun Nov 04, 2018 7:18 am

David Tew wrote:
Sun Nov 04, 2018 6:48 am
I think tyres without profile markings were 82%
78% iirc


JC

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Post by David Tew » Sun Nov 04, 2018 10:07 am

You did have me wondering there but a quick Google and here it is: :wink:
Tyre profile.JPG
Tyre profile.JPG (115.1 KiB) Viewed 639 times


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Post by roymck » Sun Nov 04, 2018 10:34 am

I think it also depends on the rim width. I tried 205/70/14 tyres on standard rims once but got the impression they moved about a lot on the sidewalls . Changing the same tyres onto 7 inch rims cured that problem.



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Post by philhoward » Sun Nov 04, 2018 12:31 pm

Started off as 82% although generally rounded down to 80%


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Post by scimjim » Sun Nov 04, 2018 12:40 pm

I wouldn’t get too hung up on rolling radius to parts of a percentage - different manufacturers, tyre pressures, rim width, wear characteristics, etc will all change it.

I’d go for the Nankangs purely because I haven’t heard of the others, which probably means they’re Chinese ditchfinders :D


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Post by philhoward » Sun Nov 04, 2018 12:49 pm

Nankangs are also Chinese but that doesn’t necessarily mean they’re bad (as a brand they are well regarded generally) - they don’t seem to have wonderful wet weather performance but it’s slim pickings in this size so a case of picking the best of the worst.

I’d never come across 75 profile car tyres before - normally found for commercials and 4x4s?

As Jim says - you can get 3% difference between manufacturers for the same nominal size so wouldn’t worry about the slight differences. If in doubt, check the rolling diameter as specified by the manufacturer.


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Post by AntC » Sun Nov 04, 2018 1:01 pm

What rating for Scimitar SE5 tyres? Long time since I have bought any!


Now Scimless - but no longer :D

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Post by philhoward » Sun Nov 04, 2018 1:52 pm

Officially S rated for the SE5 only - H rated for all other GTE models using the 185/80x14


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Post by AntC » Sun Nov 04, 2018 1:57 pm

Thanks Phil - because of the lower power of the early engine I suppose.


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Post by Dennis Nicholas » Tue Nov 06, 2018 5:26 pm

Thanks to all for the replies. So far £48.33 each (2 or more delivered free).
David Tew wrote:
Sun Nov 04, 2018 10:07 am
You did have me wondering there but a quick Google and here it is: :wink:
David thanks for that. What was the website for that table?

Dennis


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Post by David Tew » Tue Nov 06, 2018 7:00 pm

Hi Dennis,

It's a Google Book HERE.

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Post by Dennis Nicholas » Wed Nov 07, 2018 4:32 pm

Thanks David.

Have ordered 2 Nankang N605 195/75R14 92H @ £48.03 each = £96.06 (free delivery for 2 or more) ordered from Pneus Online www.tyres-pneus-online.co.uk
Now can continue to monitor MPG with tyres as near as possible to original size.

Dennis


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Post by Kccv23highliftcam » Sun Nov 11, 2018 12:21 pm

Can I add Uniroyal rain expert 3's to the list?

All my cars now run on uniroyals from 175 60-10 to 225 40-18, I will say that if you're looking for that last 10th then look else where but they are relatively soft {20k from a set on the quattro]
offer outstanding wet weather performance and basically piece of mind in the rain.

http://www.tyrereviews.co.uk/Tyre/Uniro ... /185-60-14

I am personally struggling at the moment with the concept of a new pair of 888r's @ £200+ when I could get a set of above for a lot less ....

cheers

Andy Brown.


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