I'm not familiar with bikes so I won't pretend to know their system. Your banshee is just like your car. It is a RECOVERY bottle system. I am an equipment mechanic, working on everything from lawnmowers to locomotives for 30 years. I know what I'm talking about. A lot of you are getting away with not running it, congrats to you. I know of guys having heat problem and after I convinced them to put it back on, NO More Problem. If you are without a recovery bottle it is physically impossible to have a completely full radiator after your bike cools. I'm talking NO AIR at all. That is what a recovery bottle does. Run it or not, it's your call. Just don't be telling people that it does nothing.