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I realise this subject has been done to death over the years and I apologise for bringing it up again. However, even having read through all the earlier threads, I am still unsure on a couple of points and would appreciate some authoritative guidance, please.

 

My 1972 CR is fitted with standard steel wheels, but I believe they may be from an earlier TR6. Tubes are presently fitted, even though the current tyres are tubeless.

 

Are these wheels suitable for fitting with tubeless tyres, or must a tube be fitted?

 

If I should decide to stay with a larger tyre than standard (presently fitted with 195/65 R 15 91V Goodyear Eagle NCT5), should a tube be fitted anyway?

 

Thank you in advance for any help you can give me.

 

John

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John,

A photo of your wheels might help. My old 6 was a 71 model so not early and tubeless tyres were fitted. Unless the v early Rostyles need tubes I can't really help.

 

I wouldn't fit tubes to tyres and wheels that are designed to be tubeless. I seem to recall that overheating can result although that might be an urban myth.

 

If you size up, as long as you're within the limits of the rim width you don't need tubes. Your 195s will be fine.

 

The above is my opinion. I'm not an authority and I'm not sure who is really.

Edited by peejay4A
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Our 3 sidescreen cars are fitted with TR6 '69 model steel wheels, the ones that have hub cap provision, and have run with tubeless tyres since fitting in the 1970's. Never had an issue.

 

Peter W

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Thank you all for your advice, gentlemen.

 

From my discussions today with local tyre "specialists", it appears my biggest problem will be convincing any of them that the wheels fitted to my car can safely mount tubeless tyres, as they did when the car was new - elf and safety from their point of view, I suppose.

 

All the local ones I have spoken to so far insist on fitting tubes because my wheels do not have the H1 or H2 humps they are familiar with from more modern cars. They also advise that it is unsafe to fit tubes in tyres below 80 profile, so I might be forced to fit 185's anyway.

 

Vintage Tyres and Camskill both agree I am safe to fit tubeless tyres of original size and can supply them, but they are quite a distance from me when it comes to finding someone to actually fit them.

 

Why is nothing simple?

 

Thanks again for your advice,

 

John

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Have you looked at My Tyres. they offer fitting too by arrangement with local tyre companies.

 

http://www.mytyres.co.uk/cgi-bin/stationssuche.pl?dsco=110

 

What flavour tyre did you want sir..24 to choose from..priced £50 to £250 fitted ? 165/80/15 - My own tyres are Vredstein T Trac at under 60 quid each fitted.

Peter W

 

PS Be careful about speed ratings on TR6 PI - check what your original declared top speed was and the original fitment tyres speed rating. Does a CR TR6 need T or H rated tyres?

Edited by BlueTR3A-5EKT
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Thank you, Peter. Those look like a bargain and could well get me over the resistance from the fitters.

 

Much appreciated.

 

John

 

Good point about the speed ratings, Peter, I'll check that out - I seem to recall V rating might be necessary.

Edited by Bodiam
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Having pretty much decided to go for 165/80 tyres, I have been looking into the speed ratings as suggested by Peter W above.

 

There are plenty of T rated tyres on the market, covering up to 118mph, but very few H rated, covering up to 130mph.

 

The sources of information I have found on the net quote 119 or 120mph as the top speed of a TR6 PI, so as usual I am between the devil and the deep blue sea when it comes to making my choice. Just to complicate matters further, my car is a CR, but has been fitted with a CP engine in the past, so heaven knows what its top speed might be.

 

I realise the chances of ever driving my TR at anything approaching its quoted top speed are vanishingly small, but I want to avoid the possibility of an insurance company having any wriggle room on correct tyre fitment should I have to make a claim in future.

 

All comments welcomed, as ever.

 

Kind regards,

 

John

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When I had a full set of tyres fitted at Dexell in lincoln they checked their data books to find the nearest modern equivalent to the original size fitted to my six.They came up with 195/65HR15.tubless as the closest match. I went for Firestone TZ30091H,and have been pleased with them. Hope this helps.

 

 

Brian

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Thank you, Stuart, that's virtually giving them away and quite close to home too, so I should be able to get over this tube/tubeless issue with them.

 

I'm still sort of leaning towards 165's but the lack of choice in the correct speed rating may force me to go for the wider sizes.

 

Help much appreciated,

 

John

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I still have a set of Goodyear GT80 tyres, which were fitted ne to my 4a in around1995 when it was nearing completion.

 

They are in brilliant condition and don't deflate whilst standing, but I don't think today's rubber would stand the test of time quite so well maybe?

 

I put a new tyre on a trailer I had more recently, and within 18 months the sidewall had perished!

 

Kevin

Edited by boxofbits
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Kevin,

 

As it happens, old age (the tyres, not mine!) is the reason for my looking for new tyres. My Goodyear Eagle NCT5's are about 9 years old and have loads of wear left in them, but have next to no grip in the wet - the car did its best to swap ends on me a couple of weeks ago, so I thought it was time to put my neck first and fit some new ones.

 

Simples, I thought - then I started on the complications!

 

John

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Hi John

 

Yes it's a minefield these days with manufacturers from every corner of the planet.

 

I have a '66 S Mini and opted for Yokohama on this, which are well known for grip, good price, and used a lot by short oval racers in the UK. The grip on the Mini is amazing btw.

 

It may be worth contacting George Polley Motorsport in Manea, Cambridge, (number on the web) and ask what they have available. Speak to Steve or George Polley, and If you mention my name (Kevin from Eastbourne) you might even get some discount! Link below:

 

http://www.polleymotorsport.co.uk/

 

Regards

 

Kevin

Edited by boxofbits
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Hi John,

Gosh some tosh floating around these days about tyres.

 

The original TR6 wheel is suitable for tubeless tyres!

The 195/65 15 is NOT the nearest modern equivalent, except in rolling radius, I.e. Speedo reading etc

 

My personal opinion the best fitment 165/80, and again my opinion it is Michelin XAS in that size.

That size is only available as a tubed type so they do need tubes but because of the tyre - not the wheel.

 

PM if you want a chat.

 

John

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Hi John,

 

NCT 5s are primarily designed for relatively weighty cars (look at the load rating !) - at 9 years old they'd be fine on my Rover 800, but distinctly skittish on a TR in the wet . . . . .

 

If you do change them, I'll cheerfully offer a few quid for the Goodyears, and use them up . . . . . :D

 

It's worth checking with your insurers - they may well be quite happy to accept a T rated tyre, for example, on a classic as opposed to modern car - Vredestein T-Trac2 offer remarkably good (in my opinion) wet weather performance for a budget tyre. But get it in writing from the insurers . . . . .

 

Camskill offer T-Tracs at bargain prices - http://www.camskill.co.uk/m53b0s408p0/Car_Tyres_-_MPV_Tyres_-_People_Carrier_Tyres_-_15_inch_R15_inch_-_165_80_15_165_80R15_R15_inch_-_165_15_165R15

 

The fact that my pal Julian Richards hasn't yet managed to unstick his 3A on T-Trac 2s says a lot - it isn't for want of trying !! :D

 

Cheers

 

Alec

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I have Vredstein 165 on the original steels and Continental 165 on new Minilites.

I do not see any reason for running ugly fat tyres, but you could buy a Porsche. :)

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Alec,

 

Thank you for the suggestion re the insurers. At the end of the day, I'm convinced that T rated tyres will be fine for the use I put the car to, but it's the insurers who have to ok it, in case of accidents.

 

As regards the Goodyears, you'd be welcome to them as a gift, I reckon the various pieces of advice you've given me over the past few years are at least worth that!

 

 

OAF939M - thank you for that, I think the Vredestein Sprint Classic is certainly a good option if I have to go for an H rated tyre. I'll pass on the Porker, thank you!

 

John

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In case you didn't see it, my old tyre post here - Tyre Size .... Again with pics may help.

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Thank you, Mitch, for some reason my searches hadn't picked up that thread.

 

The photographs are very persuasive, I am now pretty certain that 165/80 is the way to go - hopefully, my insurance co will be happy to accept a T speed rating, rather than insisting on an H, so that I will have a wide range to choose from.

 

Quite looking forward to giving my biceps a rest when manoeuvring at low speed!

 

Thanks again,

 

John

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