Originally Posted by
Doctor Morbius
And I understand that with hydraulic disc brakes I can't turn the bike upside down, but upside down is how I've been working on my bikes for decades. It's just too easy to flip a bike over to change a tire or wipe down and lube the chain.
I don't think it's entirely true. It's more like rumors based on lawyer talk to protect themselves in case a half ass bleed job was done by a mechanic.