Rated 4 out of 5 by Anonymous Very Good
The tube seems to have a life of about 12 - 18 months during which time it prevented all punctures.
After the 12 - 18 months punctures resulted in a flat as I suspect the internal sealant had been used up or dried out.
When I changed the tube there were approximately 14 thorns which had punctured the tube but which had been sealed so it definitely did its job.
People moan about the extra weight of self sealing tubes but it is barley noticeable when holding two tubes for comparison. A must for muddy winter rides when the last thing you want to do is fix a flat.
09 April 2010
Rated 3 out of 5 by Anonymous these are really good inners ive even ride oversharp rocks. but i reccomend getting halo extra Safe Inner Tubes they beat every thing
25 October 2009