Excuse my ignorance folks but I don't want to make a silly mistake. On my Pro-Connect in the top of the handlebar stem is an allen nut and written around it are the words 'inside cartridge system'. What is this please and do I need to loosen this to raise the handlebars upwards? I tried releasing the two lower ones but that just seems to allow the handlebars to twist left and right. I have the vision that if I loosen this centre nut I might be ejected over the hedge ala James Bonds ejector seat
Cheers
Ken
Cheers
Ken