Bob E
Well-Known Member
I think all of the flexing the sidewall goes through pinches or abrades the tube at the hole.
If the hole gets too big you can use a boot with a tube. (this guy shows what I'm talking about starting around 10:20 https://www.youtube.com/watch?v=OzuvS4iCTeg ). Of course back in the day when I used to do that kind of thing tubes were also a lot cheaper. Now you can almost buy a new tire for the price of a couple tubes.
If the hole gets too big you can use a boot with a tube. (this guy shows what I'm talking about starting around 10:20 https://www.youtube.com/watch?v=OzuvS4iCTeg ). Of course back in the day when I used to do that kind of thing tubes were also a lot cheaper. Now you can almost buy a new tire for the price of a couple tubes.