hi folks i am thinking of building a jump bike but i am unsure of a few things - what is th piece of kit that joins th forks to the handlebars called (is this all you need to attach the forks to the frame - i am unsure how to fit chainrings cranks pedals anything around that area of the bike - where would i get bolts and things to hold the wheels together etc. i have priced all parts from tartybikes except forks and the frame and pedals,cranks evrithing i'm not sure about