Changed to Kenda tube due to light weight the day before a triathlon. Thought they were fine, took a brief 10 mile spin and all appeared fine. Approximately four hours later setting up the bike for the race, both tires were flat! Upon examination, no pinches, no punctures, frictions spots, etc. but there were circular defects on the tubes matching the diameter of the base of the valve-looks like whatever machine they use to seat the valve into the tube roughens the tube wall up. The marks weren't similar, they were identical. There were multiple pinhole leaks around this circular mark on BOTH tubes. Patching helped but still lost air enough to have to replace both tubes the morning of the race, unable to hold air overnight (from 115 to 20 psi).
These tubes are great for the price. The weight is very good for a non-racer and they are pretty flat and pinch resistant. I usually match them with Continental Grand Prix 4000 tires and really like the combo.
I was putting in more miles recently than every before on my road bike. Flats began to be a serious nuisance. Considering I selected tires for thier weight reduction and low rolling resistance I felt this should be complimented with lite weight but durable tubes. After trying a few other tubes I experienced this Kenda SuperLite road tube. This combined with the right tire and the right tire pressure sure seems to have solved my issues. Now I spend more time improving my conditioning instead of on the side of the road fixing flats.
Worth giving these tubes a try if you're having flat problems. But also check your air pressure and check reviews on tires as not all are made equal.
Nice lite tubes but with anything lite they are susceptable to failure. I went back to a standard weight tube for training as changing flat tires suck. These would be best suited for race day where weight is more a issue.