hi my names Justin. new to this site, hoping to find some help. I have just reacently bought a bike with a 3 speed nexus equiped with a coaster brake. im trying to find out if its possible to convert to a nexus 8 with the roller brake? thanks for any usabe info.

Hi Justin, nice to have you.
Check in with the Bicycle Mechanics Forums.
They can help you with any question.