Anyone with little ones knows you don't want to have the bike unridable or spend time patching a flat tire when they want to ride. These heavy duty tubes will take a heck of a big thorn before they give up. Throw a little sealant in and they should never go flat!
These tubes are awesome. Ran the entire supermileage competition season without a single flat tire, or tube failure. In comparison, we had 3 consecutive tube failures in 24 miles of competition last year. I won't buy any other tubes than these.
I used to get one flat a week. I commute on roads and debris is a problem along the way. After installing these combined with Schwalbe Marathon Plus tires, flats are a thing of the past. I don't need to carry any tube repair gear.
I bought two, and when I opened the box, I was impressed with the ruggedness of the tube. .. I always do a soap and water test of new tubes as some come with tiny pin holes. .. One of the tubes was fine and the other has 3 tiny pin holes. Two where the valve stem is applied and one about 4 inches away. Check first! .. A defect can happin to any product. I still think they can be a good Value and great for thorn protection.
Excellent quality. I have not experienced a single flat since installing the Kenda Thorn Resistant Tube. Terrain we bike in is loaded with goat head thorns and they have not penetrated the tube since we began using it.