Pitts S-1 new tubes?

[Guido Lepore]

Tires are close to looking like what we normally see on an Antonov, time for new ones. Choice is easy enough, Goodyear FSII 500x5 4ply (Thanks Wes). Good aviation maintenance practise is to always change tubes at the same time. I'm looking for that size tube with a 90 valve stem but they all seem to be more expensive than the tires at $120 each. When did tubes get so expensive? And I really want to exercise good aviation maintenance practise.

 

[acropilotbret]

 

[Guido Lepore]

 

[cgzro]

 

[Ryan Mactaggart]