Thread: Bar tread tyres, cost and where to find?

Originally Posted by Rick Fischer

S1 tyres - In another life I was considered to be a drip under pressure with regard to tyres. Aircraft tyres! However, in my many consultations with Dunlop, goodyear Michelin et al and the conversion of heavy metal (transport category - big commercial jets) from x plys to radials one becomes aware of a tyre characteristic called "cornering force". Counter intuitively, it is the force that is required to move a tyre out of a straight line. It also relates back to all auto tyres, their construction and allowable deflection.

Anyway old Landies were designed with x plies. Everything that goes on down the front is to do with, was designed for cross plies, ie ye olde road track majors sort of tyre. The only adjustable feature (even to this day) is toe. Castor and Camber are/were fixed yonks ago. For Series it was with regard to xplies.

Another hint, apart from front wheel drive and torque steer, everything is now power steer. Has a bit to do with radial tyres "cornering force". (Not all but a bit)

Where is this going. We really all need to fit xplies! Finding appropriate tyres has been a dread sitting in the back of my mind since I found the wheels I have are fitted with oversize radials.

Perhaps we need to ask the Dunlop side if Mr.Beaurepair if he might do, or have done a run of x ply RTMs, or perhaps organise Pommy Dunlop for same????

Maybe an AULRO bulk buy????

Unfortunately, all of the local Oz tyre building expertise is being, or has been lost a la GM and Ford. An example - needed a aircon switch for my 89 MX5. System was Mazda (aftermarket DENSO) designed, built, and installed in country, 1989! Australian Denso have quit! ( No GM No Ford No Toyota!!!) Only way to get a switch was a box of 1000 ex Japan

Anyway - Tyres we really do need X plies, and perhaps a bulk buy of a build might get a "reasonable" price????????????

Comment? Ideas??

Cheers

Rick F

Rick,

I would definitely be in on a buy of Dunlop RTM's as my 7.00 x 16 set are getting decidedly low on tread (except the brand new spare). They are fantastic tyres & really sit well on the 107". So if you know where we can get some I would be most grateful. The only other option at present is the radial in 215/85 R16, which is almost the same OD at 771.9mm.

Cheers
Nigel

Originally Posted by Rick Fischer

S1 tyres - In another life I was considered to be

Perhaps we need to ask the Dunlop side if Mr.Beaurepair if he might do, or have done a run of x ply RTMs, or perhaps organise Pommy Dunlop for same????

Maybe an AULRO bulk buy????

Yes.

Or find where they are still making them in the old patterns. I think I have seen something like an RTM in 6.00 or 6.50 produced somewhere in India or Malaysia., but haven't gone looking for a while. Will try to find a web link.

Roger

Back in 2008 I got a set of new RTM's (7.00 x 16) that Dunlop were getting made in Malaysia.
From memory the originals were 6-ply and these were 8-ply.

I guess it means that they still have the moulds it's just getting enough interest.....






Colin

Originally Posted by gromit

Back in 2008 I got a set of new RTM's (7.00 x 16) that Dunlop were getting made in Malaysia.
From memory the originals were 6-ply and these were 8-ply.

I guess it means that they still have the moulds it's just getting enough interest.....

I realise the thread is getting old, but is there still interest?

Dunlop South Africa have the "Universal" in a few sizes. 7.00-15 (8ply), 7.00-16 (8ply), 7.50-16 (8ply), 7.50-16 (12ply).
Product numbers; D11123007, D11123002, D11123006, D11123011
Dunlop Universal Tyre.png
Dunlop Australia are not good at replying to emails regarding information. Might be different with a bulk order.

Not of use to you I understand Peter, but for others looking at purchasing second hand tyres for registered vehicles. Tyres now have a life span, 6 years, and it is illegal to run tyre older than that on the road. Might be heaps left in them, but have an accident on the road with older tyres and Insurance will wipe you. Hard time for Enthusiasts vehicles, I guess it just means we have to drive them more

By the way, if you look at a tyre, just above where it sits on the rim, you will find a manufactured date. Usually month and year, as (04/17).

Originally Posted by grazza53

Not of use to you I understand Peter, but for others looking at purchasing second hand tyres for registered vehicles. Tyres now have a life span, 6 years, and it is illegal to run tyre older than that on the road. Might be heaps left in them, but have an accident on the road with older tyres and Insurance will wipe you. Hard time for Enthusiasts vehicles, I guess it just means we have to drive them more

By the way, if you look at a tyre, just above where it sits on the rim, you will find a manufactured date. Usually month and year, as (04/17).

Could you please put up a link to the relevant document? .W.

As far as i know there is no legal life on use of tyres. If this has changed, I would like to see the legislation or regulations.

I think what has happened is that tyre manufacturers, suppliers and repairers are setting a life on tyres they will fit or repair simply because of their product liability worries (increased under the Australian consumer law). Of course, the fact that it helps their sales may influence them as well!

John

Originally Posted by grazza53

Not of use to you I understand Peter, but for others looking at purchasing second hand tyres for registered vehicles. Tyres now have a life span, 6 years, and it is illegal to run tyre older than that on the road. Might be heaps left in them, but have an accident on the road with older tyres and Insurance will wipe you. Hard time for Enthusiasts vehicles, I guess it just means we have to drive them more

By the way, if you look at a tyre, just above where it sits on the rim, you will find a manufactured date. Usually month and year, as (04/17).

Urban myth.
Been covered before.