Every part on every kite from every brand can and will fail over time. As we have always stated, pre-flight your gear no matter what you ride.
Leo brings up a great example, because even on a top brand like Ozone that uses the highest grade of materials, wear and tear can deteriorate your equipment. As kiters, we are ALWAYS hanging on by a string, so it is up to us to constantly check and upgrade our gear as neccessary.
Good news is for Ozone Kite Owners, National HQ is located within hours of SLC and we carry a full stock of replacement parts dating back to 2003 Snowkites and 2006 Inflatables so we can get your ride up and running safely no matter how old it is. unfortuneatly if you have another brand like Wipika, you may have trouble getting bladders

.
Let us know what other parts may be worn, Leo, and we can help you determine wether it is best to just simply replace that one line, or if your entire bar should be upgraded or replaced.
Windzup.
Brian Schenck