Originally Posted by Sangesf

Your problem is this..

CRAP tubes.

I used to buy tubes from target. BAD idea.
I bought 3 so I would have extras... So I had a flat and replaced it with the first tube.. It blewout WHILE pumping it up with a hand pump (only got to 30psi then blam!). So what did I do? Took out the second one, checked my rim and bead, no problems there, started pumping up the second tube and AGAIN! BLAM! (around the same psi). So took the third one, put it in and it inflated correctly!! Yey! UNTIL... 100' from my house and another blowout.
Never bought from target again, and haven't had any problems since.
Moral of the story....
If at least 2 of the same item have a problem, most of the items from the same company are probably bad too.
So, has your bike been ok since?

P.S. I bought a "thick" tube that also was filled with slime and have been riding on that same tube for over 2 years with no problems since!