I had a Mr. Tuffy CAUSE a flat... it got doubled-up in one spot, and the sharp corner at the bend chafed and eroded the tube.

Now I run a Slime-brand tire liner in the rear... feels softer, less likely to chafe the tube.


I just put my second flat in a month in my 28 mm All Condition Armadillos. Grrr...

We have really dirty, disgusting roads here. I don't think it's the tires' fault.