brad wilson from st louis on 8/8/2020 1:30:48 PM:
If you used these tubes for a long time and just recently got flats, then I'd just get a new set of the same tubes.
Inner tubes move as the tire flexes and will eventually develop leaks. You have to replace them sometime. Some people put talc on the tubes to allow them to move with less friction.
I use schwalbe tires (Marathons, Big Ben, etc.) and find them to be the key element in flat protection.
I use brand name inner tubes like Giant, Specialized or Schwalbe.