This question already has an answer here:
I have a 25mm size tyre and I'm ordering some inner tubes on the net.
So far, I seem to have a choice between either the 18/25 range or the 25/32 range.
Both would fit but would one size be better than another?
Would the 25/32 tube heavier to accommodate the 32mm tyres and would the 18/25 size tube would be easier to puncture because it's at the maximum stretch?
Or would this be largely negligible?