I have a 78 and it came stock with 2 tanks .
90 l in front and 90 L in the back .
As I needed more range , I duped the rear tank in favor to a custom made tank of 200 L .
This is not an answer to your initial question, but don’t look only to the...
This is a classic tire design from Michelin , XS .
But also Dunlop and Yokohama did the same design .
They were made especially for the petrol companies exploring North African Sahara region in late 60 .
The special construction allow the tire to...