underage+overpayed

ok. because ive never ridden a geared bike before i i will get a drag 125 before i do the test for my experience. anyone give anything about how it runs with a passenger on the back?

hi, im completely new here so please dont slaughter me if i say something completely retarded. basically im in love with the yamaha XVS dragstar 125 and i intend on buying one when i turn 17 and riding it on my CBT. however in time i want to pass the A2 test allowing me to carry passengers and riding up to 600's at the age of 17. i just wanted to know how dragstars faired with passengers (im 6ft2 and 11 stone myself (fatty i know)) and how fast i could get one to go. im aware its a cruiser so its not a speed machine but i wondered as im going to keep it for a few years before i get on anything bigger what mods can be made and what difference with will make. this help is greatly appreciated. x