[infobox maintitle=”Notice:” subtitle=”At my request, Tailfin sent me the new Top Tube Pack Flip for testing. For that I say thank you and that’s advertising.” bg=”gray” color=”black” opacity=”off” space=”30″ link=”no link”] I’ve had a lot of experience with top tube bags for Bikepacking: my first one was the old Ortlieb top tube bag, which was…