I am currently having tyre 40-559(ETRTO) or 26"X1.5 and tube picture. But I recently thought of buying a spare tube and tyre(available on some offer). However, I had a hard time in matching it with my current tyre dimensions.
Tube on offer: HUTCHINSON 650x28-42 A/B (26x1"1/4 / 1"3/8) (ETRTO 28/42 - 571/584)
And a tyre also on offer:
VTC 37-590 1 26x1-3/8 650x35A HS348
As I am new please forgive me for the obvious or senseless questions. But I didn't seem to get help from the shops or Google search.