Moin. I have a 650 bandit from 2012. As I noticed, 03/2016 (just under 7500 km) the last proper maintenance was done. The rear liquid has already been changed, because the container was not in order. So I would like to change the brake fluid in front. I need DOT4 brake fluid; that’s clear. Is it enough 1 litre? What kind of hose do I need to push it safely onto the ventilation nipple? Do you have something specific? How do you do this with the right torque to close the nipple permanently again? What else do I have to pay attention to?