Old gum wall tire inspection.

[horsefarmer]

Going through a few old 26 x 1 3/8 wheels. gonna try to get a few wheelsets together for a couple of projects. I also have a pile of used tires. IDK how old they are but say 1960's - 1970's vintage so only 50 - 60 years old!

They are mostly gumwalls, one set has cracks in the tread when you pinch them so i think the are toast.
All the others seem sound except for cracking gum walls. I've thrown away a lot of old bike tires that were rotten but these are not and even have nice tread. Maybe these tires came off of bikes hanging upside down in garages?

 

[MattiThundrrr]

My CCM tandem from the early seventies has what I assume are the original tires. No wear whatsoever, barely any cracks, so I'm rolling on them. Black walls, though, which seems to last longer

 

[Verrt]

They're not done until you can see the tube through the cracks!