Originally Posted by
razorjack
somehow... all bearings on bikes fail, in suspension sometimes even just after few months (if you live in wet place), and seals (LLU - full contant) are not able to stop all the moisture.
While your statement is basically true, the time to failure can vary widely depending on bearing seal design, bearing quality, and maintenance. I'm used to not having to replace bearings over many tens of thousands of miles. But then I ride Campagnolo exclusively. YMMV
