Get the maximum performance out of your tires with the Vredestein latex tube. The latex not only delivers a more supple road feel (like a tubular,) but also provides increased puncture protection. 58 grams
I put these latex tubes in my Schwalbe Marathon Plus 700x25 tires trying to build the most puncture resistant tires for a 1900 mile tour. Forty two miles later the front tire (105 psi) sudden failure, muffled "pop" and deflate. I put the old tube back in and have been 650 miles no problem. At approximately 700 miles rear tire (110 psi) "pop" followed by deflate. So I am happy to have the standard old tubes back I was concerned about the back tire sense the front tire failed. I did have about 100 lb of gear on the back and I am a 210 lb guy, so they were heavily loaded, I was probably using them beyond design. Another thing was these tubes lost more pressure than the standard old rubber tubes, the latex tubes would go down to about 65 psi (from 105 psi) in two days. The rubber tubes would drop to 80 psi (from 105 psi) in two days. Not a big deal unless you are re-inflating with one of those small carry on your bike pumps. Then it is a lot more exercise re-inflating. One of the positive things about these tubes, after they failed my boys used the latex to make some awesome slingshots. You probably will not throw away the used tubes, the latex can be used for a multitude of things.
Bottom LineNo, I would not recommend this to a friend