I have a fulcrum racing 5 evo which has a loud free hub (like other campy) for about 5 years now. I like the loud noise when coasting because I don't need to put a bell on the bike. On my last ride, I just notice that the wheel has become quite (like a shimano).
Can anyone tell me is that something I should be concerned (and get a bell), or is it just need servicing? I also don't know if it's serviceable because it has cartridge bearings. What is happening and how is it affecting the ride?