Originally Posted by
chas58
I used Mr Tuffy once – and they gave me a flat about 3 hours into a 4 hour ride. The end of the liner chafed against the tube and wore a hole in the tube. I couldn’t figure out why I would be loosing air when I was riding, but then I did the autopsy when I got home.
I've ridden tens of thousands of miles on Mr. Tuffys without any issues whatsoever. I may have worn a hole in a tube once or twice but that was after many, many, many miles. Slime liners, on the other hand, was like putting razor blades in the tires.
Originally Posted by
chas58
Bonus - totally eliminates pinch flats.
They may eliminate pinch flats but the pinch flat is only a symptom of a problem. Without that symptom, you still have the problem but you just don't have an indicator...at least not an indicator that is rather inexpensive. Your tire can still bottom out on impacts but now, rather than have a pinch flat to fix, you have a bent rim. One costs about $0.25 to fix and the other is around $90.