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Technical & Reference Section => Tech and Restoration => Topic started by: monkian on September 26, 2019, 12:28 PM

Title: How to date GT Tyres?
Post by: monkian on September 26, 2019, 12:28 PM

Does anyone know how to date GT skin wall tyres? Was there a production run over a few years on these?

I’ve got a pair, both 20x1.75 that are stamped. One has ‘K-69 20-E-751’ & ‘150181’ The other has ‘K-69 20-E-764’ & ‘150162’

Any ideas?

Title: Re: How to date GT Tyres?
Post by: That Swan Guy on September 26, 2019, 02:41 PM

Got pics Paul?

Title: Re: How to date GT Tyres?
Post by: monkian on September 26, 2019, 03:06 PM

Here you go Nick. Unfortunately if they ever had logos they’re long gone :(

(https://uploads.tapatalk-cdn.com/20190926/02411faafa0aa8e8c7bf2ab64ece6da1.jpg)

(https://uploads.tapatalk-cdn.com/20190926/3ae6fc71dc1d90c7babdb225250543d8.jpg)

Title: Re: How to date GT Tyres?
Post by: That Swan Guy on September 27, 2019, 06:30 AM

1987

Title: Re: How to date GT Tyres?
Post by: monkian on September 27, 2019, 08:49 AM

Ok that’s Cool
How is that calculated Nick? Do you have any idea how long the production run for this type of tyre was?

Title: Re: How to date GT Tyres?
Post by: monkian on September 27, 2019, 09:37 AM

Here’s a better shot of the tread pattern ;)

(https://uploads.tapatalk-cdn.com/20190927/eec991c924ff603648acf946fea32632.jpg)

Title: Re: How to date GT Tyres?
Post by: That Swan Guy on September 27, 2019, 05:02 PM

That tyre pattern replaced the Shinko in 1987. Didn’t do them for very long at all.

Title: Re: How to date GT Tyres?
Post by: monkian on September 27, 2019, 05:04 PM

Awesome, thanks Nick. I knew you’d be the man for this

Title: Re: How to date GT Tyres?
Post by: ED209 on September 29, 2019, 08:33 AM

I'd suggest a nice restaurant ... treat them to dinner ... couple of glasses of wine ... stimulating chat.

Roll them back to their place and see if you can come in for a coffee ...

Title: How to date GT Tyres?
Post by: monkian on September 29, 2019, 08:46 AM

Smooth but I think being dressed in rubber might call for a very different kind of night out ;)

Title: Re: How to date GT Tyres?
Post by: ED209 on September 30, 2019, 02:39 PM

Quote from: monkian on September 29, 2019, 08:46 AM

Smooth but I think being dressed in rubber might call for a very different kind of night out ;)

it may be different for you but its 'just another weekend' for Spen  fistblump