Originally Posted by
Mr Gnome
I mounted the tire. The bike shop owner and the manufacture have already replaced the wheel because the tube was defective, as per them after looking it over!
Thanks for the info and concern, but that wasn't my question. It was about loss in performance using the thorn resistance tubes? These things must be at least 1/4" thick on the outside diameter and half that on the inside diameter.
Thanks,
Mr Gnome
Yes, I realize I did not directly respond to your question. However, my intent was in part to let you know that the thorn resistant tubes were not necessary to avoid a blowout. The shop was simply wrong in diagnosing a defective tube from a blowout, and they did you no favors by neglecting to advise you as to the actual cause.
To answer your question: Yes, the loss in performance with thorn resistant tubes is very large - the tire can't respond as well to the road and you are adding weight in the worst possible place - the outermost rotating portion of the wheel.