CMP tyre manufacturers

[Hanno Spoelstra]

Back in 2002, on my web page on 9.00-16 tyres I wrote (this was originally posted on the old forum which no longer exists):

Mike Kelly made a list of 9.00-16 tyres and their markings as found on sidewalls of old tyres:

OLYMPIC ROAD GRIP 10 ply rating made in Australia
Centre Divided Rims Only
Note: Narrow directional bar V tread chevron, manufactured until early 1970's.

DUNLOP TRAK GRIP 10 ply rating Made in Australia
RAYON
To fit American Wheels
Note: Unusual curved wide bar V chevron, post WW2 manufacture.

Good Year Made in Australia
All Service Sure Grip
D /|\ D
Note: wide bar directional V chevron.

Michelin Made in England
N Type CC
W /|\ D
Note: curved directional wide V bar tread, found on a Fordson WOT2D.

INDIA SUPER TRACTION
Direction of rotation when mounted on rear wheels > (arrow pointing to closed end of chevron)
Reverse when mounted on front wheels
Note: original WW2 vintage tyres made in UK; two of them are marked RF; tread pattern is different to the T24 Dunlops.

[Alex van de Wetering]

Hanno,

I think the obvious answer is that there is no such thing as "the original" tyre manufacturer for CMP's. Both Chevrolet and Ford factory pictures show a varierty of tyre threads and brands. The Good year (Chevron thread, Sure grip) and Firestone ground grip seem plentiful, but you also see the Dunlop Track grip tyres, and also road and sand tyres made by Dunlop, Firestone, Good year and India.
Even when looking at rows of finished vehicles at the Ford and Chev plant, you'll note a variety of tyres in a line of the same type of CMP.

Alex

[Grant Bowker]

I agree that there wasn't a single "original" tire manufacturer for CMPs.

In comparing actual properties (as opposed to nominal sizes) the AEDB record mentions Goodrich, Gutta Percha, Seiberling, Dominion, Dunlop, Goodyear and Firestone as manufacturers.

Runflats seem to have been mostly made by Goodyear in the common CMP sizes with a few in "odd" sizes by Firestone and Dunlop".

Most sizes of regular pneumatic tires, both cross country and highway tread patterns, had multiple manufacturers.

[David Dunlop]

As happens today, as well, there were working relationships between auto makers and tire companies.

David

[Owen Evans]

For reference, An old Dominion Royal 'Trak Master' off my C15. Not so easy to read, so here goes:

Photo 1
DOMINION ROYAL
DOMINION RUBBER COMPANY
MADE IN CANADA
DOMINION ROYAL TRAK MASTER 1.jpg


Photo 2
FOR BRITISH WHEELS
9.00 - 16
10 PLY-PLUS
2 SHOCK PADS
RAYON
DOMINION ROYAL TRAK MASTER 2.jpg


The third photo shows the tread pattern....**NOTE** as per the below replies, it is believed that this tyre has been retreaded. So the pattern is likely not original.

Owen.

DOMINION ROYAL TRAK MASTER 3.jpg

[Grant Bowker]

I believe the Dominion tyre shown above is a retread - so the tread pattern to tyre make/model may not be original.

[Hanno Spoelstra]

Originally Posted by Grant Bowker

I believe the Dominion tyre shown above is a retread - so the tread pattern to tyre make/model may not be original.

Yes, you can still see the deep cleats of the original pattern on the sidewall.

[Owen Evans]

Originally Posted by Grant Bowker

I believe the Dominion tyre shown above is a retread - so the tread pattern to tyre make/model may not be original.

Hmmm. Thanks; that would explain why I have a Dunlop Trak Grip with exactly the same tread pattern on the other side of the truck.

[Hanno Spoelstra]

Originally Posted by Owen Evans

For reference, An old Dominion Royal 'Trak Master' off my C15. Not so easy to read, so here goes:

Part 1/2: "Lukáš Lukáš" in the Czech Republic found a set of Dominion Royal Trak Master tyres recently. They are still in excellent condition showing many interesting details:

451875052_10222268088529994_4561778917353414526_n.jpg 451508487_10222268049529019_4394390515871264196_n.jpg


"DOMINION ROYAL
DOMINION RUBBER COMPANY
MADE IN CANADA
PATENTED CANADA"

451606016_10222268062289338_398349088713789775_n.jpg
451629178_10222268064249387_9013900937224649773_n.jpg


"TRAK MASTER"

451516968_10222268060889303_4581230864283701512_n.jpg

[Hanno Spoelstra]

Part 2/2:

"FOR BRITISH WHEELS
9.00 - 16
10 PLY-PLUS
2 SHOCK PADS"

451958854_10222268056289188_4078010166406120326_n.jpg


And this I have never seen before:

"FOR 1 1/2 [degree] TAPER RIM"

449435123_10222268065809426_6663082381638967558_n.jpg


"S2"

451515151_10222268058089233_7787138305910637519_n.jpg

[Hanno Spoelstra]

Originally Posted by Alex van de Wetering

I think the obvious answer is that there is no such thing as "the original" tyre manufacturer for CMP's.

Indeed, there certainly wasn't just a single one, nor was there a preference of a certain car manufacturer for a certain tyre brand.
I hope this thread will help to catalogue at least a number of them.

[Hanno Spoelstra]

Originally Posted by Hanno Spoelstra

Back in 2002, on my web page on 9.00-16 tyres I wrote (this was originally posted on the old forum which no longer exists):

Recently, the subject of Michelin 9.00-16 tyres came up again. There is this well known photo of a 4.5" Howitzer in Singapore which has the same tread pattern as those tyres found by Mike on a Fordson WOT2D in Australia:

207313611_1720981658095848_2653108734056775691_n.jpg


From a short internet search I learned that the Michelin Tyre Company Limited in London was incorporated in 1905 and that they were making a contribution to the Allied war effort, as they say:

Marking Time in Wartime

When the Second World War arrived, it proved a traumatic time for Michelin. Up till now the UK company had relied on day-to-day contact with Clermont-Ferrand, on whom it depended almost totally for functions such as research, design and testing. The invasion of France put paid to that – indeed, Michelin UK was carefully watched as its French parent was under German control and it quickly had to become self-sufficient in those disciplines that had previously been handed down from Clermont-Ferrand. Just to make matters worse, when the Japanese came into the war, they invaded large parts of the Far East, including the valuable rubber plantations such as Michelin’s in Indonesia.

Despite these setbacks, Michelin performed heroically, working three shifts a day, seven days a week and made an enormous contribution to the war effort. Of course, there was little time or resources to devote to tyres, but the years of marking time came to an end when the war finished.

They continued to make tyres for military applications after WW2 with the same type of tread, e.g. for motorcycles: https://www.wdnorton.nl/Tyres.htm

Michelin UK 4.jpg


Interestingly, the same tyre pattern was used for post-war production of 9.00-16 tyres, some of which were recently spotted on Dodge D15 trucks. If I recall correctly, they are 1970s dated and manufactured by Michelin in France:

130115740_1344661359204909_1336199502737631650_n.jpg 204253108_1481699028834474_2177669072603869049_n.jpg

6D09715B-AA90-4822-AC2A-F8B6E4CBB627.jpeg

[m606paz]

Dunlop Track Grip 1050x20 12 Ply dated 1945 Made in Canada

[m606paz]

More pics and inscriptions details

[m606paz]

AEDB Volume 4

4-082.jpg 4-083.jpg 4-084.jpg 4-085.jpg

[m606paz]

More AEDB pages

4-083a.jpg 4-083b.jpg

4-086.jpg 4-087.jpg

[David Herbert]

Thanks for posting that Mariano.
It is interesting the amount that the different makes have different dimensions for the same size tyre.

David