Top operation, but still nok reliability
"Bought less than a year ago, first signs of sagging after 3 months during an outing in the Alps. Okay, no worries, I use the vent valve and it's back on. Except that now, I have to use the vent valve before each outing to eliminate the sagging. And it's not very practical, because you have to dismantle the saddle. To be avoided. It's a real shame, because from a functional point of view, when it works, it's great."
