Larger wheel rims

[GrahamF]

I am sure there's been lots of these requests, but what is the largest rims anyone has fitted?
Can I go for 17" or even 18" rims?

[Westfaling]

Graham
It the overall tyre diameter that makes the difference. A larger the wheel with a lower profile tyre can have the same or smaller diameter than standard.
Great website here that will tell you the story

http://www.rimsntires.com/specspro.jsp

The standard Stag alloys are 14" 5.5" wide with +28mm offset. Some debate on what "standard" tyres are but 185/80 R14 would be my pick.
Nick

[GrahamF]

Hi Nick, thanks for the link, I wondered why I have never seen anything larger than a 15" rim. With lower profile tyres I can't see why An 80 profile depth couldn't be replaced with a 60. I will try the calculator. Mine has gone off today for a respray, so would like to fit some larger boots on when it comes back.
Graham

[Westfaling]

there are few cars with 16" rims out there. The lower profile tyres do tend to affect ride quality which might be why not too many people would want to run 40 profile tyres on a Stag.

[404ROD]

Are not modern car suspension systems, wheel sizes and tyre profiles designed as a whole? Putting a low profile tyre on a standard Stag suspension, though using a larger diameter wheel, would shake the body to bits on some rough surfaces. I have 17" wheels on my Mondeo with 50 profile tyres and some of the pot holes I have recently come across positively gave the body a good old shake up, though of course they are designed for the car and its suspension. Did blow the tyre on one occasion. I know many people curse the use of low profile tyres for this reason.

Rod

[1959terry]

Can anyone post some photos with 16" wheels?

[Stagdad]

DSC02661.jpgDSC02637.jpg

[Motorsport Micky]

I should have a think about the suspension components and especially rear trailing arms and hub attachments. All the cars are now 40plus years old and the components are well outside their original design envelope with advanced material corrosion and wear especially on the small studs holding the hubs on.
If you fit aggressive low profile tyres the cornering forces will increase by a massive factor and apart from the awful ride characteristics it could cause a calamitous failure of one of the highly stressed components, I should proceed with caution.

Micky

[Daz]

stag 1photo.jpg

After 3 months deliberation I went with 15s

[tonyh]

Below is an article from the Club magazine, the subject of low profile tyres was around back in the 80’s, personally I would never use them on a Stag, ok larger wheels with low profile tyres may look nice but under certain conditions can be unsafe. Another point worth raising is the insurance, if your Stag is running on tyres not designed for the Stag is you’re Stag still insured in the event of an accident? In case you are wondering who Gerrard Sauer is, he has been involved with building, preparing and driving race cars since the 1960, he wrote for various car magazines and had a spot on LBC back in the 90’s

Tony.


Low Profiles Explained by Gerard Sauer:

Low profile tyres and their application to Triumph Stags. Whilst it was not intended to be controversial it does appear that some people have misunderstood somewhat,
my interpretation of what a low profile tyre constitutes. In the strictest sense of the word,
Goodyear 185/70HR14 tyres are ‘low Profile’ but by modern day standards, they are not.
The shoulder construction and the radius of the tyre shoulder is such that 185/70 HR14 tyres
will be suitable for the rear suspension of the Triumph Stag, and of course the front. The tyre I wanted to warn you against was the low profile tyre between 50 per cent and 60 per cent ratio which, because of its nature, has the square profile construction, eg tyres such as
Pirelli P6, Goodyear NCT, etc. This particular problem is not peculiar to the Stag. It is
relevant to all suspensions which have a large amount of camber-change designed into them. In its effective life the footprint of the tyre is your only contact with the road, and as such it is extremely important that this footprint should be facing the road in consistent way.
Changing the footprint width from 6in down to 2in from one moment to the next,
is a blueprint for disaster.
The arguments in favour of low profile tyres are that generally speaking the 50 per cent and 60 per cent ratio tyres are superior in construction, and certainly on the front of the Stag will give improved grip as
there the camber change is not so great. But that certainly does not go for the rear.
The points against these tyres are that the car was not designed for them and the rubber in the suspension pivot points was not designed to stand such loads. The high cost of the low profile tyres will become even higher when you find that on the Stag they wear out twice as fast as on a car with a suspension designed for their use. So on balance, as it appears that you are losing more than you are gaining from such a purchase,
I have advised against it.

Issue 34 (December 1982), pages 18,19

[DJT]

Thanks for that Tony.

On the basis that the full profile (80 series) tyres are virtually in obtainable in H rated 14" size, except for the high priced Michelins, what tyres do you now recommend for the Stag?

Falken do a T-rated option, the Sincera SN-807, and some members have their insurance companies approval to fit them. I will be looking to fit a full set of 185/80 14" tyres soon.

[Mike Stevens]

I've got Hankook Optimo K715 185/80-14 on my Stag and PI saloon and they seem fine to me. OK, they're only 'T' rated, but that's specified for up to 118 MPH I believe? I can't see me getting anywhere near that speed. Not in the Stag anyway!

Cheers,
Mike.

[saffronstag]

Dave,

What about Vredestein Sprint Classic 185 R14 90H, I've had these fitted for a couple of years now and been really pleased with the handling, ride and the 'classic' look of them.

Typically £80 to £90 a tyre versus the £250+ for Michelin MXV

Andy

[sid269]

hi, what size tyres are on these wheels? they look great

[Stagdad]

hi, what size tyres are on these wheels? they look great

Are you on about the pics I posted?