The disc wheel is equipped with a factory-installed Powertap power meter; it is well known that racing a time trial or an Iron Man with real-time power data offers a clear advantage over those without this reference. Furthermore, it is well known that clincher tires on disc wheels are faster than tubulars; I have personally performed various tests, and the rear disc wheel guarantees an advantage of at least 1" per km for the same performance. The ZIPP decals are slightly worn and can be replaced by the buyer if desired; they are easy to find. The inner tube needs to be replaced, as does the Po...