These are great because they are hard to find elsewhere and you don't have to use valve extenders (with which I have had middling success getting to maintain pressure). However, in my recent order, two out of four tubes failed on the interior of the tube (so not because of road debris).

These are great because they are hard to find elsewhere and you don't have to use valve extenders (with which I have had middling success getting to maintain pressure). However, in my recent order, two out of four tubes failed on the interior of the tube (so not because of road debris).