Originally Posted by
soyabean
I've pulled out some really old Tuffys from used bikes I buy, and although they were still in good shape, they look and feel a little different than the brand new ones makes today.
My bet is that they aren't the same as 20 yrs ago. I have them in all my personal bikes/ebikes and never lost a tube.
That's actually good to know because I was considering getting the Ultralight version for my touring bike, so thanks for that info. What I did years ago when I used to use the regular MrTuffy was to coat the inside of the tire, the Mr Tuffy liner, and the tube with baby powder and never again had a flat caused by the liner rubbing the tube, so I will be doing that with the new liners.