Comments about Nashbar 700x19/26 Schrader Road Tube:
These tube walls are inconsistent in thickness (cross-sectional diameter). When inflated, the smaller sections (especially the valve stem area) become thinner by stretch. These areas rub against the tire inner surface causing a breach and lose air pressure. Sometimes in less than 40 miles and never last above 100. (I only use mid-to-high quality tires). I only order them on sale for a "get me home" spare.
Was this a gift?:
Bottom Line No, I would not recommend this to a friend