Originally Posted by
Cyclaholic
I flat once every 2 - 3 years, and it's something catastrophic, like a chunk of metal gashing the tire wide open.
Before I started using Mr.Tuffy liners I was flatting once every 2 - 3 weeks.
I've been using them on tires that aren't Schwalbe Marathon Supremes. I'm using a version from Slime which seems to also work well. The only problem for me is that these liners have no protection from sidewall damage, which has happened once or twice. However, for most of the flats I've had, using a liner would have most likely prevented the flat. (I haven't had a flat in over a year.)