Add Yahoo as a preferred source to see more of our stories on Google. It's no secret that Presta valves clog, bend, and can unscrew or leak, yet we still use them on almost every bike. The BBB Cycling ...

Although Presta valves are pretty much standard on higher-end bikes' wheels, the things definitely do have their drawbacks. Dutch company BBB Cycling has decided to do something about that, with a ...